Plews Professional Pistol Grease Gun includes 18 inch flex hose, vinyl handle grip, air bleeder valve and bulk loader fitting. This grease gun is a hand-operated pump that can be loaded with grease and is used for lubricating the grease fittings on a vehicle. It helps in applying lubricant to a specific point, usually on a grease fitting. It features variable stroke for use in tight places. The loading system is 3-way which is a 14 ounce cartridge, bulk or suction. This grease gun develops up to 7,000 pound per square inch and delivers 1 ounce per 40 strokes.