... surface chromium plating,handle the trigger pensu Namesoft glue gun,Caulking gunWeight Item NO.SX-YFR-008Size10"MaterialIron Sheet thickness ... round bar steel 7.8 mm, aluminum handle iron trigger, gun body surface chromium plating, handle the trigger pensuG/N(KG ... the use of a cartridge product reuqires a caulking gun(adhesive, sealants, fillers, etc. 10" silicon/glue caulking gun