Fangrui Product Details Lock And Seal - Grease Gun Coupler Jaw Design Makes It Easier To Open And Close The Grease Fitting, Reinforced Jaws And High-quality Sealing Gaskets Ensure Long-lasting And Stable Performance, No Leaks Even At 17,000 Psi Extreme Pressure. High Quality - Made Of High-quality Refined Iron, It Can Perform All-weather Indoors And Outdoors, Stable And Reliable. One-handed Operation - Double Handle Anti-slip Design And Smooth Retract Mechanism Allow For One-handed Operation, Easy To Install/remove. Once Locked Onto The Grease Gun Accessory, It Stays Open And Frees Both Hands To Operate The Grease Gun. Wide Applications - Compatible With 14mm Standard, Micro, Battery, Pneumatic, Manual Grease Guns And Fittings, It Also Fits M6/m8/m10/m12/m14 Grease Fittings, Just Your Existing Grease Gun Coupler. Material: Iron Colour: Chrome Package Contents: 1 X Grease Nipples Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The It