Features: and . This product is widely used in fine polishing of stainless steel, copper, aluminum and other metal and glass, furniture, ceramics, marble and other non-metallic . It gets good effect and high service life. It should be used with polishing wax or grinding paste. Save time and working procedure, easy to use. Specifications: Product: Grinding Wheel. Material: Wool. Color: White. Size:3", 4", 5" available. Hole diameter: 8mm. Quantity: 1 piece. Note: Transition: 1cm=10mm=0.39inch. Please allow 0-5mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! If you really care about these details, pls DO NOT order. Package includes: 1 x Grinding Wheel. No retail package Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.