3/8 in. Dia Neodymium Rare-Earth Magnet Discs with Foam Adhesive (12-Pack)

Super Neodymium Magnets with Adhesive do not require the use of glue, just peel off the adhesive liner and stick to your craft or project.

5/8 x 1/8 inch Neodymium Rare Earth Disc Magnets N42 with 3M Self-Adhesive (18 Pack)

Neodymium magnetic Magnets Round Diameter 6mm to 3mm Round Neodymium Magnets 5mm to 3mm

MagnetSource 3.91 Lb. Capacity Neodymium Disc Magnet with Adhesive (5-Pack) - Tahlequah Lumber

Magnetic - Fasteners - Hardware - The Home Depot

MagnetSource 3.91 Lb. Capacity Neodymium Disc Magnet with Adhesive (5-Pack) - Foley Hardware

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Neodymium - Disc - Magnets - Fasteners - The Home Depot

3/8 x 3/8 inch Neodymium Rare Earth Disc Magnets N52 (12 Pack)

CMS Magnetics - (12 Count, 1.26”x1/8”) Powerful Neodymium Disc Magnets with 3M Adhesives Included, Strong Disc Rare Earth Magnet for Fridges, Crafts, Iron Filing Demo, Science & DIY Projects: : Industrial

Rare Earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses.

Rare Earth 3/8 in. x 1/4 in. Disc Magnet (12-Pack)