Gator 10PK 0.75" x 1" Aluminum Oxide Drum Sanding Sleeve Kit. It 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, 10 sanding sleeves (4 x 120 grit, 3 x 80 grit and 3 x 50 grit).