5mm X 2mm N52 neodymium magnets round discs 3/16in x 1/16in
N42 Neodymium Disc Magnet - 15mm dia x 5mm thick - 11.9lbs Pull
Magnet Expert 32mm Dia x 8mm Thick x 5mm c/Sink N42 Neodymium Pot Magnet [1.26 x 0.31 x 0.2"] - 44kg Pull [97 lbs], 1pc: Amazon.com: Industrial & Scientific