A. **Features** - Locking and Sealing: The upgraded jaw design with snap - locks and sealing washers can lock onto the grease fitting and prevent leakage. They are also relatively easy to lock and unlock. - One - Handed Operation: The single handle with anti - slip design and a smooth retraction mechanism supports one - handed operation. It is ergonomic and labor - saving. Once locked onto the grease fitting, it can stay in place, enabling both hands to freely operate the grease gun. - Wide Compatibility: The grease gun coupler is compatible with many grease guns, mini - grease guns, and small grease gun ends. It is suitable for various equipment such as excavators, bulldozers, cars, large factory equipment, tractors, harvesters, etc. B. **Specifications** - Material: Metal - Color: Silver - Dimensions: 9 x 1 cm - Weight: 140 grams - Styles: Single - handle, Double - handle C. **Package Contents** - 1 grease gun coupler - 1 15 - inch spring hose