Features: Material: Polyurethane coating, nylon thread Color: Purple Quantity: 5 < /li> Maximum speed: 10,000 rpm Outer diameter: 100 mm / 3.94 inches Inner diameter: 16 mm / 0.63 inches Package included: 5 x Polyethylene tape wheels Note: Due to the difference between monitors and lighting effects, the picture may not reflect the actual color of the item. Please allow a little error due to manual measurement. Thanks for your understanding. Durable Excellent abrasive effect grinding and polishing performance. Uniform grinding effect and wear-resistant. Wide range of applications Wide application Wide application for steel, aluminum, copper, grinding and polishing of plastic, fiber products, wood, stone, concrete and other surfaces. Note: The data are all manual measurements, please allow an error of 1 - 3cm, due to the difference in light and display, there will be a certain color difference, whichever is the actual object received Delivery quantity: (according to the main picture)