Abrasive hook and loop film back sheets feature super sharp, fast cutting grain, durable plastic film backing that resists tearing and edge wear, and anti-clog coating to prevent particle build-up to provide superior finishing results. 4 times performance and life. 3" x 5-1/4" replacement sheets for use with Finishing Block Sander Kit, Shopsmith model No. 12192 (SKU 367203).