R428 Neodymium Ring Magnet, 1/4″ od x 1/8″ id x 1/2″ thick
This neodymium countersunk magnet is made of super strong N42 NdFeB (NIB) material, coated with Nickel (Ni+Cu+Ni triple layers). The dimension of this Tiny neodymium magnet is 1/4″ od x 1/8″ id x 1/2″ thick, magnetized Through Thickness. Its individual pull force is approximately 2.92lbs.