LockNLube Heavy Duty Pistol Grip Grease Gun Kit is a heavy-duty grease gun that gets the job done with no leaks or mess. Puts out plenty of pressure to handle sticky fittings. The patented grease coupler will not leak when locked onto any grease fitting, and will not pop off under pressure. When you're done greasing, just push down the thumb lever to release the coupler with minimal effort. Longer than any other grease gun on the market, the high-quality 20" hose includes an in-line swivel to avoid awkward twisting. The Loop & Lock feature keeps the coupler clean and secure in between uses and creates a loop in the hose to facilitate storage or carrying. The built-in bulk loader port and air bleeder valve allow you to load and prime the gun easily, even with bulk grease.