Series:KP328E sand discs(sandpaper) Backing:velcro/pressure Sensitive Adhesive paper Grit:p40-1000 Size:2"-8" sand discs(sandpaper) KP328E Backing: 250g paper Raw Material Size: 1.38m*100m Abrasive: Aluminum Oxide Grit: 40#-1000# Usage: Furniture, wood, leather, textile, metal, artificial marble etc.This material is mainly made into: Sanding disk, velcro sand paper, leather sand paper, sanding ...