magnet ball 1. high intensity, various shapes. 2.Grade: N35-N52 ... ,UH,EH) 3.Platings: Ni,Zn,Au,CU,Chrome,.. Neodymium magnet ball (block disc, ring, arc segment, or other special shapes) ... according to customers' requests, with all grades of Neodymium magnet, such as n30, n35, n38, n40, n42, n45, n30h ... , magnetic therapy, office automation, energy power and automobile industry. magnet ball