General description Set includes 252 pieces: 240 sanding bands in three diameters (1/2", 3/8", and 1/4") with 80 pieces per size, and 12 sanding drums in the same diameters with 4 pieces per size. The standard 120 grit sanding bands are ideal for smoothing surfaces and curved edges, as well as polishing both soft and hard materials, making them perfect for DIY projects, artwork, and woodwork. Technical specifications Number of pieces: 252 Sanding bands: 240 pieces in 1/2", 3/8", and 1/4" diameters Sanding drums: 12 pieces in 1/2", 3/8", and 1/4" diameters Grit: 120 Installation Drum mandrels feature a self-expanding rubber cushion for a secure fit of the sanding bands. Ensure the drum is tightly screwed and close to the sleeve to prevent the sanding belt from coming off during use. Usage Wear professional safety glasses to protect your eyes from particles during operation. Replace sanding sleeves timely to maintain optimal sanding performance. Other information Includes a free plastic