1.Compounded abrasive,frankfurt abrasive,marble synthetic abrasive. 2.Grit:400#-600#-800#-1200#-1500# Compounded abrasive,frankfurt abrasive,synthetic abrasive.T105: 400#-600#-800#-1000#-1200#-1500#Package:36pcs/ctnIt is used for fine polishing of marble slab. It is popular with factories in Chinese stone market. Frankfurt Synthetic Abrasive