ProductDescriptionPackage Includes: 1911 Vice Block + Gun Cleaning Mat - 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 - Fits all Colt 1911 Series Goverment Single Stack Pistol Models. - Vise Block is Made of Durable Black Injection Molded Polymer. Gunsmith Block Clamps in a Vise and the Pistol is held in the Magazine Well by the Mag Catch. - Vise Block is Clamped into the Users Vise, and the Block is then Inserted into the Handle-Frame of the Pistol Held in Place by the Magazine Catch.