Content: 120 abrasive belts of 3 diameters: 1.27 cm, 9.5 mm and 6.35 mm, 40 pieces per size, and 12 pieces of sanding drum in 3 diameters: 1.27 cm, 9.5 mm and 6.35 mm, 4 pieces per size, total 132 pieces Essential accessory: the most common and standard size 120 grit sanding belts are used to smooth the curved surfaces and edges, polish soft and hard materials, such as renovations, artwork and woodwork Easy installation: drum chucks with self-expanding rubber cushion, which allows sanding bands to be firmly close to the mandrel and achieve a better finish. In case the sanding belt falls off the chuck during use, please make sure the drum has been screwed down tightly and the sleeve is tight Note: Please wear professional safety goggles to protect your eyes, as there may be flying grains when the sanding drum rotates at high speed. The sanding drum will be more attracted to the metal surface, please replace the sleeves timely in order to achieve better sanding effect Color: as the picture