Features: new and high quality A suitable grease guns coupler will help you end greasing frustration and improve machine life by making greasing easily. Grease guns tip with 6 hardened spring steel jaws prevents leakage even at extreme pressure level. Grease coupler is designed to connect with the grease fitting by pressing levers to expose and slightly open the jaws of the coupling for quick connection of easy to reach couplings. It can be used in auto shops, tractors, and construction sites for lubrication and also great for excavators,bulldozers on construction sites,large equipment in factories,tractors etc. Smooth retraction mechanism allows one-hand operation, easy installation/removal.It stays on and frees both hand to operate the grease guns. Specifications: Material:Steel Type:Single Handle/Double Handle Size:Approx.9x1.5cm/3.54x0.59inches Package Includes: 1x Grease Guns Coupler note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.