These rigid 1/2" Dia. X 6" 60 grit aluminum oxide sanding sleeves are perfect for use with popular sanding drum kits. Keep plenty of these consumable sanding sleeves on hand. Sold in a 3 pack. Woodstock D1420 - 1/2" Dia. x 6" A/O Hard Sanding Sleeve, 60 Grit, 3 pk.