3M Stikit™ 6" Diameter Low Profile Abrasive Disc Back-up Pad. Provides secure attachment for a 3M Stikit™ Disc (sold separately) on a random orbital sander or other rotary tool. This lightweight, shock-resistant backup pad is constructed of firm density foam for sanding flat surfaces and has a tapered edge for applications where some flexibility is needed. Designed for convenient changes between abrasive grades or applications. Stikit™ abrasive discs come ready to use with a pressure sensitive adhesive coating on the backside so that attaching them to the hand block is as simple as pressing on a sticker. Yet they remove cleanly without adhesive residue left on the block.