Gator 10-Pack 0.75" x 1" Aluminum Oxide Drum Sanding Sleeve Kit is designed for sanding and grinding irregular shapes, contours, and hard-to-reach areas. The premium double resin bonded, aluminum oxide sanding drums are ideal for use on wood, metal, fiberglass, and painted surfaces. The kit includes 1 mandrel and 10 sanding sleeves (4 x 120 grit, 3 x 80 grit, and 3 x 50 grit).