![Amazon.com: Ferrite Ring Magnet,2.75In Dia, Heavy Duty Round Ceramic Disc Magnets with Hole for DIY Crafts Science Projects Industrial, Pack of 2 : Industrial & Scientific Amazon.com: Ferrite Ring Magnet,2.75In Dia, Heavy Duty Round Ceramic Disc Magnets with Hole for DIY Crafts Science Projects Industrial, Pack of 2 : Industrial & Scientific](https://m.media-amazon.com/images/I/61Nh3hn94kL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Ferrite Ring Magnet,2.75In Dia, Heavy Duty Round Ceramic Disc Magnets with Hole for DIY Crafts Science Projects Industrial, Pack of 2 : Industrial & Scientific
![Neosmuk Fishing Magnet,240lb Pull Strong Hoist Ring Magnets Heavy Duty Big Rare Earth Magnet, Large Magnetfor Remover, Super Neodymium High Power Magnet.: Amazon.com: Industrial & Scientific Neosmuk Fishing Magnet,240lb Pull Strong Hoist Ring Magnets Heavy Duty Big Rare Earth Magnet, Large Magnetfor Remover, Super Neodymium High Power Magnet.: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71KCsvDhKqL._AC_UF350,350_QL80_.jpg)
Neosmuk Fishing Magnet,240lb Pull Strong Hoist Ring Magnets Heavy Duty Big Rare Earth Magnet, Large Magnetfor Remover, Super Neodymium High Power Magnet.: Amazon.com: Industrial & Scientific
![Y30BH Ferrite Ring Magnet for Arts, Crafts, Model Making, DIY and Hobbies - 100mm O.D. x 50mm I.D. x 12mm Thick - 9kg Pull: Amazon.com: Industrial & Scientific Y30BH Ferrite Ring Magnet for Arts, Crafts, Model Making, DIY and Hobbies - 100mm O.D. x 50mm I.D. x 12mm Thick - 9kg Pull: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51VU20zVBRL._AC_UF894,1000_QL80_.jpg)
Y30BH Ferrite Ring Magnet for Arts, Crafts, Model Making, DIY and Hobbies - 100mm O.D. x 50mm I.D. x 12mm Thick - 9kg Pull: Amazon.com: Industrial & Scientific
![Amazon.com: Large Ceramic Ring Magnet,Industrial Grade 8 Ferrite Ring Magnets with Hole for Science Experiment-OD100mmxID60mmx15mm : Industrial & Scientific Amazon.com: Large Ceramic Ring Magnet,Industrial Grade 8 Ferrite Ring Magnets with Hole for Science Experiment-OD100mmxID60mmx15mm : Industrial & Scientific](https://m.media-amazon.com/images/I/615j+C9v7KL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Large Ceramic Ring Magnet,Industrial Grade 8 Ferrite Ring Magnets with Hole for Science Experiment-OD100mmxID60mmx15mm : Industrial & Scientific
![Eisco Labs Floating Ring Magnet Set with Wooden Base - 5 Magnets, 5.9" Height: Science Lab Education Curriculum Support: Amazon.com: Industrial & Scientific Eisco Labs Floating Ring Magnet Set with Wooden Base - 5 Magnets, 5.9" Height: Science Lab Education Curriculum Support: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71YDYbdbZNL._AC_UF1000,1000_QL80_.jpg)
Eisco Labs Floating Ring Magnet Set with Wooden Base - 5 Magnets, 5.9" Height: Science Lab Education Curriculum Support: Amazon.com: Industrial & Scientific
![MIN CI 60Pcs Strong Neodymium Disc Magnets with Hole, Small Permanent Round Ring Rare Earth Magnets Heavy Duty, for Cabinets Lockers Cruise Crafts DIY Industrial Screws (8 x 3mm Hole 3mm): Amazon.com: MIN CI 60Pcs Strong Neodymium Disc Magnets with Hole, Small Permanent Round Ring Rare Earth Magnets Heavy Duty, for Cabinets Lockers Cruise Crafts DIY Industrial Screws (8 x 3mm Hole 3mm): Amazon.com:](https://m.media-amazon.com/images/I/71DWwhzgWlL._AC_UF894,1000_QL80_.jpg)
MIN CI 60Pcs Strong Neodymium Disc Magnets with Hole, Small Permanent Round Ring Rare Earth Magnets Heavy Duty, for Cabinets Lockers Cruise Crafts DIY Industrial Screws (8 x 3mm Hole 3mm): Amazon.com:
![CMS Magnetics Super Powerful N52 Neodymium Ring Magnet OD 2 x ID 1 x 1/4" w/ 46 LB Holding Power - Rare Earth Ring Magnet 1 Piece: Amazon.com: Industrial & Scientific CMS Magnetics Super Powerful N52 Neodymium Ring Magnet OD 2 x ID 1 x 1/4" w/ 46 LB Holding Power - Rare Earth Ring Magnet 1 Piece: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51X5rVx2agL._AC_UF1000,1000_QL80_.jpg)
CMS Magnetics Super Powerful N52 Neodymium Ring Magnet OD 2 x ID 1 x 1/4" w/ 46 LB Holding Power - Rare Earth Ring Magnet 1 Piece: Amazon.com: Industrial & Scientific
![Amazon.com: BY JMY Ferrite Ring Magnet - OD6.15" x ID3.16" x 20mm Ceramic Magnet, Grade 12 Heavy Duty Magnet - for Crafts, Science and Hobbies - 1 Pieces : Industrial & Scientific Amazon.com: BY JMY Ferrite Ring Magnet - OD6.15" x ID3.16" x 20mm Ceramic Magnet, Grade 12 Heavy Duty Magnet - for Crafts, Science and Hobbies - 1 Pieces : Industrial & Scientific](https://m.media-amazon.com/images/I/61qIsVbPOpL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: BY JMY Ferrite Ring Magnet - OD6.15" x ID3.16" x 20mm Ceramic Magnet, Grade 12 Heavy Duty Magnet - for Crafts, Science and Hobbies - 1 Pieces : Industrial & Scientific
![Neosmuk Fishing Magnet,240lb Pull Strong Hoist Ring Magnets Heavy Duty Big Rare Earth Magnet, Large Magnetfor Remover, Super Neodymium High Power Magnet.: Amazon.com: Industrial & Scientific Neosmuk Fishing Magnet,240lb Pull Strong Hoist Ring Magnets Heavy Duty Big Rare Earth Magnet, Large Magnetfor Remover, Super Neodymium High Power Magnet.: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61NKNw1SStL._AC_UF894,1000_QL80_.jpg)
Neosmuk Fishing Magnet,240lb Pull Strong Hoist Ring Magnets Heavy Duty Big Rare Earth Magnet, Large Magnetfor Remover, Super Neodymium High Power Magnet.: Amazon.com: Industrial & Scientific
![Amazon.com: 9 Pcs Fidget Magnetic Rings, Colorful Finger Magnet Rings, Decompression Finger Magnetic Toys. : Toys & Games Amazon.com: 9 Pcs Fidget Magnetic Rings, Colorful Finger Magnet Rings, Decompression Finger Magnetic Toys. : Toys & Games](https://m.media-amazon.com/images/I/71A1ht68aRL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 9 Pcs Fidget Magnetic Rings, Colorful Finger Magnet Rings, Decompression Finger Magnetic Toys. : Toys & Games
![Amazon.com: Ferrite Ring Magnets with Holes - 1.2 Inch (31mm) Round Disc Donut Magnets - Circle Hole Magnets - Perfect Ceramic Circular Magnets for Crafts and DIY : Industrial & Scientific Amazon.com: Ferrite Ring Magnets with Holes - 1.2 Inch (31mm) Round Disc Donut Magnets - Circle Hole Magnets - Perfect Ceramic Circular Magnets for Crafts and DIY : Industrial & Scientific](https://m.media-amazon.com/images/I/81Wa0kHC4bL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Ferrite Ring Magnets with Holes - 1.2 Inch (31mm) Round Disc Donut Magnets - Circle Hole Magnets - Perfect Ceramic Circular Magnets for Crafts and DIY : Industrial & Scientific
![Neodymium Ring N45, OD 3” X ID 0.75” X 1” NdFeB Rare Earth Magnets 1-Count: Industrial Rare Earth Magnets: Amazon.com: Industrial & Scientific Neodymium Ring N45, OD 3” X ID 0.75” X 1” NdFeB Rare Earth Magnets 1-Count: Industrial Rare Earth Magnets: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71AfNxwRp1L._AC_UF1000,1000_QL80_.jpg)
Neodymium Ring N45, OD 3” X ID 0.75” X 1” NdFeB Rare Earth Magnets 1-Count: Industrial Rare Earth Magnets: Amazon.com: Industrial & Scientific
![Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts : Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts :](https://m.media-amazon.com/images/I/41cGqH4eygL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts :
![CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71KE8fWWZ9L._AC_UF1000,1000_QL80_.jpg)
CMS Magnetics® Super Strong Neodymium Magnets Ring N45 1-1/2"OD x 1.065"ID x 3/8" - Rare Earth Ring Magnet - Science Projects School and Magnetism Education: Amazon.com: Industrial & Scientific
![Amazon.com: Ferrite Ring Large Magnet,4.72In Dia Big Round Ceramic Disc Heavy Duty Magnets with Hole for DIY Crafts Science Projects Industrial,Large Ceramic Donut Magnet : Industrial & Scientific Amazon.com: Ferrite Ring Large Magnet,4.72In Dia Big Round Ceramic Disc Heavy Duty Magnets with Hole for DIY Crafts Science Projects Industrial,Large Ceramic Donut Magnet : Industrial & Scientific](https://m.media-amazon.com/images/I/61yJ7WZnLvL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Ferrite Ring Large Magnet,4.72In Dia Big Round Ceramic Disc Heavy Duty Magnets with Hole for DIY Crafts Science Projects Industrial,Large Ceramic Donut Magnet : Industrial & Scientific
![Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51UW2D1EzML._AC_UF894,1000_QL80_.jpg)
Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific
![10pcs Circular Ring Magnets 3/4x1/8 - Magnetic Disc Donut DIY Crafts Holder Fastener Latches Round Circle Disk Magnet N52: Amazon.com: Industrial & Scientific 10pcs Circular Ring Magnets 3/4x1/8 - Magnetic Disc Donut DIY Crafts Holder Fastener Latches Round Circle Disk Magnet N52: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/41hFHgHnH5L._AC_UF1000,1000_QL80_.jpg)
10pcs Circular Ring Magnets 3/4x1/8 - Magnetic Disc Donut DIY Crafts Holder Fastener Latches Round Circle Disk Magnet N52: Amazon.com: Industrial & Scientific
![Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts : Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts :](https://m.media-amazon.com/images/I/61x09nLL54L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Creative Hobbies 29 Piece Strong 1.25 Inch Round Ceramic Ferrite Ring Magnets, with 3/8" ID Center Hole x 3/16" Thickness - Ideal for Use on Refrigerator, Whiteboard, Arts Science Project, Crafts :
![Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51vSWCU55HL.jpg)
Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific
![Amazon.com: Burnur Grade 8 Ceramic Ring Magnets, OD 45 mm x ID 22mm x 8 mm (Pack of 6) : Industrial & Scientific Amazon.com: Burnur Grade 8 Ceramic Ring Magnets, OD 45 mm x ID 22mm x 8 mm (Pack of 6) : Industrial & Scientific](https://m.media-amazon.com/images/I/71wQck-MbyL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Burnur Grade 8 Ceramic Ring Magnets, OD 45 mm x ID 22mm x 8 mm (Pack of 6) : Industrial & Scientific
![Super Strong Neodymium Ring Magnets - Pack of 10 (7 x 5 x 1 millimeters): Amazon.com: Industrial & Scientific Super Strong Neodymium Ring Magnets - Pack of 10 (7 x 5 x 1 millimeters): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71iiqQ+NGdL._AC_UF894,1000_QL80_.jpg)
Super Strong Neodymium Ring Magnets - Pack of 10 (7 x 5 x 1 millimeters): Amazon.com: Industrial & Scientific
![Amazon.com: Ferrite Ring Magnets with Holes - 1.26 Inch (32mm) Round Disc Donut Magnets for Refrigerator Fridge, Science Projects, Crafts, Around The Office (Pack of 40) : Industrial & Scientific Amazon.com: Ferrite Ring Magnets with Holes - 1.26 Inch (32mm) Round Disc Donut Magnets for Refrigerator Fridge, Science Projects, Crafts, Around The Office (Pack of 40) : Industrial & Scientific](https://m.media-amazon.com/images/I/61SGEcQo1JL._AC_UF894,1000_QL80_.jpg)