Triangle Mouse Sanding Sheets - 400 Grit (Box of 20) - 6 Hole Pattern Hook & Loop Triangular Shaped Discs - Aluminum Oxide SandpaperBox of 20 Dura Gold Premium 400 Grit Triangular Shaped Mouse Size Sander Sanding Discs with a Hook & Loop Backing and a 6 Hole Pattern. Use these triangular discs on hand sanders, triangle sanders, mouse sanders, and other small size electric finishing sanders. High performance sandpaper made with premium super coated resin bonded aluminum oxide corundum which ensures that the grit is distributed uniformly, and so that you have a sharp, fast, and even