Pull Force: 3.45 LBDimensions: 8mm diameter x 3mm thickness, hole 3mm, (0.315in x 0.118in x 0.118in) 5/16in x 1/8in hole 1/8"Material Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides ..