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 during work. 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 leaking. Easy to use: This connector can be rotated to 360 degrees and can be replaced anytime and anywhere. And increases maneuverability, extends their lifespan and reduces operator fatigue. It is easy to install and can effectively improve the flexibility between the hose and the pneumatic tool. Easy to carry: the connector size is 1/4 inch, ultra-light and easy to hold . It is convenient to take it out with a toolbox or bag. High quality: The swivel air hose fittings adopt aluminum and have excellent properties such as corrosion resistance, mechanical properties, heat resistance, etc. The product has high impact resistance and durability. Features: Condition: brand new Material: aluminum Color : silver Adjustment for pipe diameter: 1/4 " Quantity: 4pcs Package Included: 4 x Air Hose Connectors