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 that the coupling will not leak, very sealed and durableIt works with all grease types- pneumatic, manual and electric Fits 1/8 inch NPT fitting, all and Metric Zerk coupler fittingsNo need to hold while greasing, Lock-on and free up both hands to operate your grease , Easy clip-off Maximum working pressure of 10,000PSI(690 bar)Perfect for continuous use without breakage, leakage, warping or typical wear and tear. Grease goes IN, not on the machine. No more grease mess everywhereFits all Grease -1 inch NPT fittingFits all and Metric Zerk fittings. Simply replace your existing coupler. Easily releases from clogged fittings, even at extreme pressuresLocks clamp type grease nozzlePerfect for continuous use without cracks, leakage, warping or typical wear.The sealing ring of the nozzle is made of tapered rubber to that the coupling will not leak, very and durable.Grease enters the machine, not the machine. No more grease everywhere, no more waste.It is suitable for all types of grease -pneumatic, manual and electric.Color: silverMaterial: metalPackage Contents:1 x Locks clamp type grease nozzleOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.