Arc Abrasives 30461 PSA Aluminum Oxide Cloth Discs, 24 Grit, 7-Inch Diameter, 50-Pack 7 Inch in diameter Premium heat-treated aluminum oxide grain with 100% cotton backing Highest quality pressure-sensitive heat-resistant adhesive Ideal for light blending and contoured areas on ferrous metals, steel, aluminum casting and soft hardwoods Pack of 50 discs