3M 9″ X 11″ 213Q IMPERIAL WETORDRY “A” WEIGHT SANDPAPER – 3M Imperial Wetordry Paper Sheets 213Q utilize a premium, aluminum oxide mineral, an improved paper backing, and an optimized construction that results in the following performance advantages: improved rate of cut, increased abrasive life, increased flexibility, and uniform, consistent finish. Used in wet sanding, use for scuffing the blend area prior to painting. Most flexible backing with more consistent scratch pattern make this 3Ms best wet sanding product. Sheet is 9″ x 11″. Product is sold by the sleeve of 50 sheets.