Sleeve locks couplerin place, helps to secure the connection between straight coupler and this angle coupler and preventing leakage, make the for grease filling more efficient and convenient The 90 degree crease coupler suitable for auto, farm, truck or industrial using, good for hard-to-reach for grease fittings on cars, trucks, farm equipment and more Description: Satisfy your various needs, effectand quick release mechanisms ensure that for grease enters the machine without spilling orleaking, and convenient to use for long term in your daily life. Isdesigned with 90 degree, can for grease hard to reach zerk fittings in tight spaces, convenient to connect some difficult fittings, alonger service life, durable and sturdy, not easy to break, Weight: 0.22487150724 pounds, Manufacturer: YIXANNX