Material: Alloy & Plastic Color: as shown in pic Feather Fit for the polishing of artificial stone, furniture and wood products,metal,automobile Scope: Pneumatic grinding machine chassis with brushed or hit the self-adhesive sandpaper sheet, and a ball of wool to wood, metal, stone, paint products such as cotton polished surface. To clean pad: Wipe with a clean dry cloth, do not use solvents Specification Diameter: 2 inch (50mm) Backer plate: M6 x 1.0 Thread shank Shank: 3mm Maximum speed: 12000 RPM Quantity: 1 set Package includes: 1 x 2" Polishing pad 1 x 3mm shank Not included electric grinder and sand disc