Usage Tips:This 90-degree grease coupler made of quality carbon steel material is designed to grease hard-to-reach fittings in tight spaces. Its spring-loaded design prevents leakage and makes grease filling efficient and convenient. Equipped with silver grease adapter and sleeve, safe and widely used in car, truck, farm, or industrial applications. Features 1. Carbon Steel Material: This grease coupler is made of quality carbon steel material, with a galvanized surface to prevent corrosion, sturdy and durable, not easy to break, and can be used for a long time. 2. 90 Degree Design: This grease coupler is designed at 90 degrees, can grease hard-to-reach zerk fittings in tight spaces, convenient for you to connect some difficult fittings. 3. Spring-Loaded Design: This grease coupler is a spring-loaded design to prevent leakage and make grease filling more efficient and convenient. 4. Safe to Use: Equipped with 1-piece silver grease adapter and 1-piece sleeve, working pressure range For 3000-4500PSI. And convenient for long-term use in daily life. 5. Widely Used: This 90-degree grease coupler can be used in car, farm, truck, or industrial use, suitable for hard-to-reach grease accessories such as car, truck, and farm equipment, also suitable for most manual grease tools. Specification Material: Carbon steel Color: Silver Size: 7.8 cm Weight: 105 g Package Include: 1x Grease Coupler