R834DIA Neodymium Ring Magnet, 1/2″ od x 3/16″ id x 1/4″ 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 Small neodymium magnet is 1/2″ od x 3/16″ id x 1/4″ thick, magnetized Diametrical. Its individual pull force is approximately 4.11lbs.