Lumax Brand Grease Gun Mini Pistol Grip . Compact, lightweight. Pistol grip for easy, one-hand operation for hard-to-reach jobs. Heavy-duty, special, LuCast, cast-alloy head. Two-way loading - cartridge or bulk. Contoured lever develops more pressure with less effort. Ergonomically designed T-handle provides positive grip. Non-drip seal on hydraulic coupler prevents leakage. With 3 oz. Cartridge. Ideal for handyman, automotive, industrial, farm and RV applications.