Details:* .* materials and fine workmanship.* Electric grinder dedicated sandpaper, used together with rubber roll * Nuclear sculpture, wood, metal, plastic, jade, circuit board and other DIY products a wide range of applications.* Material: Alumina * Color: Red Brown (As pictures show) * Shank Dia. : 1/8"(Approx.). Install the sandpaper wheel method: Direct Rubber Ring with Abrasive Ring to the rod, and then tighten the screw rubber rods, the rubber rod will become a drum, hold the tight sandpaper. Package Contents: 6 * Sanding Drum (Shank Diameter 1/8")2 Each: 1/2" x 1/2"; 3/8" x 1/2"; 1/4" x 1/2"15*1/2" x 1/2" 120 grit pad15*3/8" x 1/2" 120 grit pad15*1/4" x 1/2" 120 grit padNote:1. The actual colors of the item may be slightly different from the picturesDisplayed on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.