Features 1、High quality nylon grinding head, wear-resistant and durable, widely applicable. 2、Precision metal polishing effect, high efficiency, save money and effort. 3、Widely used for polishing and grinding micro electronic equipments, metal, wood, jewelry and other objects. 4、Simple and convenient to use, it has no dust pollution and is safe to use. 5、Mainly used for polishing, rust removal, sanding, sanding, deburring and slag removal. Specification Condition: 100% Brand New Item Type: Abrasive Wheel Material: Nylon Grit: 80 - 300 Grit Brown: 80 Grit (10Pcs) Green: 150 Grit (10Pcs) Red: 240 Grit (10Pcs) Black: 300 Grit (10Pcs) Overall Length: Approx. 45mm / 1.8in Grinding Part Diameter: Approx. 22mm / 0.9in, 25mm / 1in Shank Diameter: Approx. 3mm / 0.1in Package List 10 x Green Abrasive Wheels 10 x Red Abrasive Wheels 10 x Black Abrasive Wheels 10 x Brown Abrasive Wheels