Pistol Grip Heavy Duty Grease Gun, 14.5 oz Cartridge, 5 in Extension Coupler ORS NASCO High visibility reflective print enhances visibility Thermal High visibility reflective print enhances visibility Thermal Plastic Rubber knuckle guard and pinch point finger protection AX Suede™ high visibility synthetic palm Armortex® grip on thumb and index finger provides durable gripping power PORON® XRD® palm padding absorbs impact and vibration The oil based ink is ideal for porous and non porous surfaces ranging from concrete resilient and impervious to lubricant Extra heavy follower spring insures positive priming and uninterrupted pumping action Rugged cast pump head for strength and durability Jam proof toggle mechanism prevents binding or accidental bending of plunger Exclusive “Flip Over" follower allows a superior seal for either cartridge or bulk loading applications Tough