Ultimate Arms Gear Gunsmith & Armorer's Cleaning Work Tool Bench Gun Mat For Heckler & Koch HK P30 P 30 Pistol Handgun - Large Exploded View Schematics Diagram of Revolver and Parts List Large Exploded View Schematics Diagram of Revolver and Parts List : 11" x 17" Neoprene rubber backing prevents fluids from penetrating through to work surface Soft polyester top protects gun and parts from scratches