... leather, glass, shaving board, and plywood working materi:A/O S/C Z/A. sand beltBacking: extra heavy blending cloth , polyester, ... cottongrit: A/O S/C Z/A.Range of grit: P24-P800Bonding: resin over resinCoating: ... bag.(according to your request)Usage mode: different kinds of belt, disc, wheel,Appliation: Metal working, leather, glass, shaving board, ...