Package Included -- Comes with 144 sanding belts and 6 sanding drum mandrels. A total of 150 pieces of drum sander with a free plastic box, convenient to store and retrieve Perfect Combination -- Grits accessory rotary sanding belts contain 2 sanding grits (80 grit , 120 grit) and 3 diameters (1/2", 3/8" and 1/4"), each grit and size has 24 pieces sanding belts Universal Drum Chucks -- 6 reusable drum chucks divided into 3 diameters (1/2", 3/8" and 1/4"), each size 2 pieces. Common and standard size suitable for all rotary tools like Dremel Easy to Assemble -- Rubber sanding rollers in different sizes are for sanding sleeves in different diameters, which is convenient for cleaning. installation and use. Note: Please wear professional safety goggles to protect your eyes as there may be flying grains when the sanding drum rotates at high speed Wide Compatibility -- Waist Drum Sander Kit standard, widely used for smoothing surfaces and curved edges, widely used in soft and hard materials such as home improvement, woodwork, artwork and other finishing and DIY work Features:</b> These rotary sanding marks contain 2 abrasive grits (80 grit, 120 grit) and 3 diameters (1/2", 3/8", 1/4" ). Each grit and size has 24 pieces of sanding belts for your use. Easy assembly:</b> Drum chucks with self-expanding rubber pads that secure sanding belts close to the chuck and allow for a better finish. Compatibility:</b> Standard size drum sander kit, widely used for smoothing surfaces and curved edges, and soft and hard materials such as home improvement, woodwork, artwork and other DIY finishing touches. Package Includes</b> :150pcs/lot Note:</b> 1.Please wear professional goggles to protect your eyes as there may be flying grains when the sanding drum rotates at high speed. 2.The sanding drum will be fixed on the metal surface faster, please replace the sleeves in time to achieve the best sanding effect. 3. This product is inedible and please keep it away from babies under 3 years old.