【New Design】Double handle design for less effort when greasing and easy installation and use of the nozzle.Improved This Grease Gun G Coupler has a double handle, and is a locking grease coupler that can be locked onto the grease fitting and helps remove contaminants associated with lubrication. 【Quality Materials】The grease gun nozzle is made of high quality alloy steel and has a spring of good elasticity to ensure smooth sliding and stable performance throughout the application, and can be used with alltypes of filler grease. 【Reinforced Jaws】The oil gun seal ring is made of tapered rubber to ensure leak-free clutch, high pressure resistance, hexagonal lock, no oil leakage, and very dense and durable handle gear. 【Easy to Use】Simply lock the grease fitting and use thumb to release.Easy to remove under pressure.Easy adapter removal without pulling or using a screwdriver. 【Fits All Grease Guns】It is suitable for all types of grease guns - pneumatic, manual and electric.Suitable for armored connecting shafts, axles, harvester assemblies, U-joints and other recessed grease fittings.