Stay Put Painters Canvas Plus, Surface Grip, Spill Block, 6 x 8-Ft.300% more slip resistant than 8oz canvas, the Stay Put(TM) Canvas Plus gives you leak resistant protection that stays put where you place it. The drop consists of three layers absorbent canvas, leak resistant plastic, and a durable non slip backing. Use the canvas side up to keep tracking to a minimum. Reduce messy clean ups by protecting your jobsite with the Stay Put(TM) Canvas Plus.