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 Package includes: 24 * 1/2 inch sanding belts (80 grit) 24 * 1/2 inch sanding belts (120 grit) Belts 24 * 3/8 inch sanding belts (80 grit) 24 * 3/8 inch sanding belts (120 grit) 24 * 1/4 inch sanding belts (80 grit) 24 * 1/4 inch sanding belts (120 grit) 2 * 1/2 inch drum mandrels 2 * 3/8 inch drum mandrels 2 * 1/4 inch drum chucks