Ultimate Arms Gear Gunsmith & Armorer's Cleaning Work Tool Bench Gun Mat For Glock Pistol Handgun Large exploded view schematics diagram of gun 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 Diagram and Parts Description. Black Mat Imprinted with Glock Exploded View