Package Includes Diamond Polishing Pads ×18 Hook and Loop Backer Pad (5/8’’-11 hole thread) ×1 8mm Drill Adapter ×1 Grit includes: #30, #50,#100,#150, #200, #300, #400, #500, #600, #800, #1000, #1500,# 2000, #3000, #5000,# 6000, # 8000, #10000 Notice: The color of the back is not constant! Diamond Polishing Pads Kit: The Diamond polishing pads are made of high-quality diamond and resin. Widely Usage： Great for all solid surface materials.Nylon Velvet: High-quality nylon velvet, firmly bonded, can be repeatedly torn and pasted.Strong Sticking Ability: The tray's surface is closely arranged with hooks, which are attached closely.Easy to Install: An abrasive backing magic stitcher with barbs makes it stickier and firmer. You can change pads just in seconds. Designed to polish concrete terrazzo floor surfaces, with an excellent finish on the marble floor, marble countertop, travertine floor, and glass.