You are looking at a special grease gun nozzle. It will allow you to easily lubricate hard-to-reach and deeply recessed grease fittings. Thanks to the long tip, which reaches 2.5 inches, you can easily reach any lubrication point: on driveshafts, axles, axles and other recessed fittings. At the same time, the nozzle locks securely onto the fitting and won't fall off even under high pressure up to 10,000 psi. The high-strength lock allows the nozzle to be easily disconnected with just a flick of the thumb. The LockNLube nozzle is universal - fits all standard 1/8-inch threaded grease guns and connects to all metric and inch grease fittings. Simply replace the standard nozzle with LockNLube and enjoy the convenience of lubrication!