Dripless 10oz Industrial Ergonomic Composite Caulk Gun Ergonomically designed composite construction Hardened rod and powder metal drive dog Rugged composite construction weighs up to 40-percent less than other models Extra long clean-out rod that snaps in place when not in use 18:1 thrust ratio for medium- to heavy-weight sealants and caulks Industrial heavy duty ergo composite caulk gun provides superior performance Engineered ergonomic grip to keep the wrist in a natural and balanced position for comfort Rugged composite construction weighs up to 40-Percent less than other models Extra long clean-out rod that snaps in place when not in use; rotating barrel for corners Recommended for use with all caulks, construction adhesives including polyurethanes; available in 10-ounce cartridge