ITEM NAME:40Pcs 1 Inch 25mm Grinding Buffing Polishing Wheel Set for Rotary Tools C4C1 40Pcs 1 Inch 25mm Grinding Buffing Polishing Wheel Set for Rotary Tools C4C1 Widely used in micro-electronic equipment, jewelry and stamp production and other industries, and supporting the production of various kinds of power tools manufacturer. It is currently a small area of metal and nonmetal materials rust deburring, surface polish, such as efficient polishing tools. Material:nylon Shape: T Diameter:25mm Thickness:15mm Shank diameter:3mm Shank length:35mm Overall length:50mm Color:red,green,black,brown(10pcs /each color) Quantity:40pcs Package include: 40 x Buffing Polishing Wheels(a pack) Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.