This grease coupler has a dual handle design that is easy to use and won't damage the pipe. It works with all types of grease guns and has a lock-on feature that frees up both hands while greasing. The coupler is made of durable metal and has a conical rubber seal ring for a leak-proof, sealed connection. It is perfect for continuous use without wear and tear and is compatible with all grease tool models. Features 1. Dual handle is easier to use and it will not damage to the pipe. The nozzle's seal ring is made of conical rubber to ensure that the coupling will not leak, very sealed and durable. 2. It works with all grease gun types - pneumatic, manual and electric. 3. No need to hold while greasing, Lock-on and free up both hands to operate your grease gun, Easy clip-off. 4. Perfect for continuous use without breakage, leakage, warping or typical wear and tear. 5. Material: Made of durable metal. Compatible with all grease tool models. Specification Material: Metal Color: Silver Size: 11 x 5 cm Weight: 150 g Package Include: 1x Grease Coupler