CMS MAGNETICS6 Pieces 15.9 Kilogram Holding Power Cup Magnet 5 Centimeter Diameter.

CMS MAGNETICS - 5-Pack RB50 C8 Ceramic Ferrite Round Base Magnet with Anti-Corrosion Chrome Plated Steel Cup and 35 LB Pull Force - Cup Diameter: 51.6mm, Center Hole: 4.8mm, Thickness: 7.5mm

Master Magnetics Ceramic Round Base Magnet - 2.618" Diameter, 0.375" Thick, 0.275" Center Hole, 65 Pound Pull ea, Nickle Plated, Pack of 3, RB70CX3

Master Magnetics Ceramic Round Base Magnet Fastener - 3.20'' Diameter, 0.445'' Thick., 0.270'' Center Hole, 95 lb Pull, Nickel-Plated, Pack of 2, RB80PRCX2