Product Name: Polishing Wheel Suitable for polishing, buffing and grinding metal, etc. Widely used in aerospace, plant maintenance, foundry, automotive, metal fabrication and shipyards Main Material: Fiber Main Color: Gray Granularity: 180 Grit; Overall Size: 150 x 25mm / 6inch x 1inch (D x T) Inner Hole Diameter: 18mm / 0.7inch Package Contents: 3 x Polishing Wheel Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.