Silicon Carbide Velcro Discs Grit: P36-P1200 Hole: 1,4,5,6,7 ... holes Size: 100mm,115mm,125mm,150mm,180mm,230mm Velcro backing Silicon Carbide ... Velcro Disc Grain Backing Diameter X Hole sizeGrit No.SI. Velcro ... craft or latex paper, Norton paperMaterials: aluminum oxide, silicon carbide, zirconium oxide, zinc-stearateColor: white, brown, yellow, ...