This grease coupler is designed with 90 degree, can grease hard to reach fittings in tight spaces, convenient for you to connect some difficult fittings, the 3 Jaw coupler design snaps on and off grease fittings easierSpring loaded sleeve locks coupler in place, helps to secure the connection between your straight coupler and this angle coupler and preventing leakage, make the grease filling more efficient and convenientThese 90 degree crease coupler are made of quality carbon steel material, the surface is galvanized, which can prevent corrosion to the greatest extent and has a longer service life, durable and sturdy, not easy to break, can be applied for long term90 degree crease coupler is suitable for auto, farm, truck or industrial using, good for hard-to-reach grease fittings on cars, trucks, farm equipment and more, it can be also applied for most hand-operated grease guns, with working pressure range for 3000-4500PSI.Colour:silverMaterial:Carbon steelPackage Contents:2 pairs x silver coupler adaptersOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.