Features: brand new and high quality. Put the sandpaper loop into the rubber wheel, tighten the rubber wheel screw, the rubber expands to make the sandpaper loop tight. Quality construction built is long lasting, lightweight and durable for sanding holes, contouring edges, and buffing out irregular shapes. Sanding Drum can be installed on electric tools such as electric grinders and electric drills. Sandpaper are suitable for wood carving, root carving, wood, plastic metal, non-metallic surfaces, polishing and deburring. Sandpaper size: 60#, 80#, 120#. Sandpaper specifications: 1/2" 3/4" 1" 1-1/2". Specifications: Material: Metal & Sandpaper Carton: approx 270x135x55mm/10.63x5.31x2.17 inches Sandpaper Width: approx 50mm/1.97 inches Shaft Length of Sandpaper Ring: approx 80mm/3.15 inches Sandpaper size: 60#, 80#, 120#. Sandpaper specifications: 1/2" 3/4" 1" 1-1/2". Package Includes: 16x/Set Sanding Drum note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.