Usage Tips:Package Contents: You will receive 1 sturdy 6- grease couplers. Upgraded jaws and gaskets more stable in performance and will not leak oil. Will not leak under test even at 17,000PSI or higher material: The grease coupler is made of iron, suitable for all-day use in the garage or shop. Thicker springs can provide a stronger lock, easy to lock and release. Non- handle: The upgraded one-hand handle design is and non-, which is convenient for one-handed operation to open or close the grease accessories, convenient and ergonomic. It's also easy to maneuver in small corners. Practicality: The upgraded thickened spring provides a secure lock and prevents leaks while refilling with lube, no waste and mess. Oil is used more efficiently, saving time and money. Wide range of applications: Compatible with M8/M10/M12/M14 standard grease tips, small grease tips, etc. For metric fittings. perfect for lubricating machinery on construction sites, auto repair shops, farms, factories and more. Colour:Chrome Material:iron 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 item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.