12 Grit Variety Pack Box of 160 ProductionShopPremium 5-Hole Pattern Dust-Free Mouse Detail Sander Sandpaper Sheet Pads with a Hook & Loop Backing. The sheet assortment includes 5 each of grits 40 ...

How do you know when you need a new piece of sandpaper? Change your sheet of sandpaper if the grit has worn away, debris is getting stuck on the paper, or if the sheet is torn or damaged in any way.