New design: double handle design for easier oiling and convenient installation and use of the nozzle. This G coupling for grease gun features a double handle and a locking mechanism that securely attaches to the grease nipple, helping to reduce contamination during lubrication. Quality materials: the grease gun nozzle is constructed from high-quality alloy steel and includes a spring with excellent elasticity to ensure smooth operation and reliable performance. Compatible with various grease fillers. Reinforced clamping jaws: the oil gun sealing ring is made of conical rubber to provide a secure, leak-free connection, high pressure resistance, and a sturdy hexagonal lock design that prevents oil leakage and ensures durable handle transmission. Easy to use: simply attach to the grease nipple and use your thumb to release. Can be easily removed under pressure without pulling or using tools. Compatible with all grease guns: fits all grease fittings with a 1/8 inch NPT connection. Works with pneumatic, manual, and electric grease guns. Ideal for use with shielded connection shafts, axles, harvester assemblies, U-joints, and other press-fit grease nipples.