12mm x 5mm Very Strong 12 Dia 5mm Thick Neodymium Circular Disc Round Magnets
20mm dia x 5mm thick N42 Neodymium Magnet - 7.3kg Pull
Neodymium Magnet, Round【1-10 Pieces Per Package】 from NIROKU | MISUMI
Ferrite Ring Magnets with Holes,OD40 x ID22 x 8mm Round Disc Donut Magnets,Circle Hole Magnets,Perfect Ceramic Circular Magnets for Crafts and DIY - ...