360 DEGREE ROTATION: Swiveling 360 degree at two pivot points prevents the hose from kinking, completes tool maneuverability and reduces operator fatigue. THREADS: 1/4 inch female thread NPT and 1/4 inch male thread NPT. This connector accepts both standard threaded joints and fast change adapters. WORKING PRESSURE: 1/4in basic body size, with a maximum working pressure of 150 PSI. Make sure you have better sealing straps. PRODUCT MATERIAL: Red anodized aluminum oxide makes the connector , and has a long service life. APPLICATION RANGE: 8 piece package. The swivel air hose connector is perfect for pneumatic air tools such as grinders, , glue , drills, and etc. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:red Material:aluminum Package Contents: 8 x Air Hose Connector 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.