Features: 1. Made of high quality material, the abrasive has good wearresistance and long durability. 2. Great performance in grinding and polishing effect. 3. No damage to the surface of the object. 4. Fit for most of 100mm angel grinders. 5. Widely used for grinding and polishing the surface of steel,aluminum, copper, plastic, fiber products, wood, stone, concrete, etc. Specifications: Material: polyurethane coated, nylon cord Color: black Quantity: 5pcs Granularity: 60# Maximum Rotational Speed: 15200rpm Outer Diameter: 100mm/3.94in Inner Diameter: 16mm/0.63in Thickness: 14mm/0.55in Weight: Approx. 385g Package List:5 x Poly Strip Wheel Note:1. Due to the difference between the monitors and light effect, thepicture may not reflect the actual colorof the item. 2. Please allow small error due to manual measurement. Thanks for yourunderstanding. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..