Stanford - Model SMSN0739 - Neodymium Sphere Magnet
The SMSN0739 SPHERE neodymium magnet is made from high perfermance N42 NdFeB, with Nickel coating. The dimension of this item is 1/4' diameter, magnetized , with tolerance of ±0.004'. The weight of this super strong neodymium magnet is 0.0021875 lbs. It can pull up to 1.63 lbs steel. And the surface field is up to 8815 gauss.