$67.99 6mm x 4mm Disk Round Permanent Magnet NdFeB N45 Ni - Magnets - MPCO Magnetics
MASTER MAGNETICS 1-3/4 in. Diameter Ring Magnets (2-Piece per Pack)-96604 - The Home Depot
1/2 Strong NdFeB Magnet Disc Diameter 12.7mm 1/32 to 3/8 Height Powerful Neodymium Magnetic 
