Features: 1. Easier and More Precise Greasing: 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. 2. Quick Release and Lock: The thumb levers design makes coupling and decoupling easier and it will not pop out under pressure after being locked. It allows both your hands to operate the grease Coupler 3. Easy to Use: Simply turn the textured swivel handle with a finger you can release grease fittings in seconds even if there is grease in your hand. No more hard springs. 4. Wide Compatibility: Compatible with all grease Coupler. Also suitable for most pneumatic electric or manual grease pump accessories. 5. A Great Greasing Tool: It is a great handy tool that can be used for applying lubricants and greases to various mechanical or moving part and a quick-connect grease hose adaptor. They are widely used by mechanics engineers and hobbyists alike. Notice: Please allow 1-3cm deviation due to manual measurement Actual color may be slightly different from the image due to different monitor and light effect Description: Size: 38*5.6cm Specifications: 400CC Withstand voltage: 6000PSI-7000PSI includes: 1 Set High Pressure Grease Coupler "