Description: Lock and Seal Up to 12,000 PSI: Reinforced jaws and premium sealing gaskets ensure long lasting performance and prevent leaks even at 12,000 PSI extreme pressure. Sturdy: Made of high quality metal material, it can be used all day in the shop or garage, and is heavier and stronger than other grease couplers. Labor Saving Grease Nozzle: Using a High Pressure Grease Coupler to lubricate a joint or bearing enables better precision, pressure and flow control in applying the grease and delivering it to areas that would otherwise be difficult to access. Easy to Use: Well designed to deliver lubrication under pressure, forcing it into areas of a rotary bearing which may otherwise be very tricky to reach without disassembly. Wide Use: It can save time, avoid grease leaking and get rid of the daily frustrations that bad greasing equipment brings. Widely used by mechanics, engineers, and hobbyists alike. Specification: Working pressure: 12000 (psi) Extrusion pressure: 6500 (psi) Material: Metal Size Chart: Gen 2: 88mmx17mm/3.46inchx0.67inch Gen 7: 90mmx57mm/3.54inchx2.24inch Package Includes: 1 Piece Grease Nozzle Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!