Convenient and practical: This fittings design with 360 degree swivel in two places can prevent the hose from twisting and protect the hose from twisting while working. This adapter has threaded holes in a male pipe and a female pipe,the screw on the end of the unit adjusts the tension and prevents leakage. Easy to use: This connector can be rotated 360 degrees and can be replaced anytime and anywhere. And increases maneuverability,prolongs their life and reduces operator fatigue. It is easy to install and can effectively improve the flexibility between the hose and the air tool. Easy to carry: the connector size is 1/4 inch,ultra-lightweight and easy to hold. It is convenient to take it out with a tool box or a bag. High Quality: The swivel air hose fittings adopt aluminum and have excellent properties such as corrosion resistance,mechanical properties,strength to heat,etc. The product features high impact resistance and durability. Features: Condition: New Material: Aluminum Color: Silver Fit for Pipe Diameter: 1/4inch Quantity: 4pcs Package Included: 4 x Air Hose Connectors