Features PU foam cotton material, comfortable grip, suitable for long-term operation, not tired, not grinding hands. Magic patch mill bottom, suitable for all kinds of suede sandpaper. The surface is smooth and dust free, easy to clean. Light weight, easy to carry. Suitable for wood polishing, household cleaning, automobile maintenance, finishing grinding. Features: PU foam cotton material, comfortable grip, suitable for long-term operation, not tired, not grinding hands. The surface is smooth and dust free, easy to clean. Magic patch mill bottom, suitable for all kinds of suede sandpaper. Light weight, easy to carry. Suitable for wood polishing, household cleaning, automobile maintenance, finishing grinding. Specification: Material: PU Foam Color: Yellow Model (Optional) Diameter Height Weight 2" 49mm/1.9inch 49mm/1.9inch 25g/0.9oz 3" 72mm/2.8inch 61mm/2.4inch 31g/1.1oz 4" 103.5mm/4.1inch 60mm/2.4inch 73g/2.6oz 5" 125mm/4.9inch 45mm/1.8inch 67g/2.4oz Package List: 1 x Sanding Block Package List