Glenrock Block and Bag Target Tarp (Olive Green, Small) The small Target Tarp fits most block and bag targets 20"x20"x18". It will also protect small game targets up to 25"x25"x15" such as standing turkey and racoon. 20"x20"x18" 10.6 oz polyester fabric with a polyurethane coating. Draw cord with barrel lock for easy on off. UV and water resistant. Fits most block and bag targets 20"x20"x15" UV and Water resistant. Prevents fading and cracking