==============DESCRIPTION ============== Item: Resin bond diamond concrete polishing pads, concrete floor renew pads Quantity: 63pcs Specification: Diameter 100mm/4" Diamond Grit: #50, #100, #200, #400, #800, #1500, #3000,each grits 9pcs Total thickness 6mm, workable thickness >=4mm Spiral turbo type Application: Special design for concrete polishing Feature: 1. Wet Working 2. Velcro backed, can be attached to the floor polishing machines, 3. Saving money and fast working ================The End================