[Size Details]: This air hose connector has 1/4inch male NPT x 1/4inch female NPT. This fitting accepts both standard threaded fittings and quick-change adapters. [Aluminum Material]: Our air hose fitting features blue and red anodized aluminum to make the fitting lighter while also featuring hardened steel for longer life. [Working Pressure]: The air hose connector has a 1/4in basic body size and a maximum working pressure of 150 PSI. ensures you have a better sealing wire strap. [360 Swivel Design]: This air hose connectors rotate 360 at two pivot points to prevent hose kinking, improve tool maneuverability. [Scope of Application]: Our air tool swivel fitting is widely used for pneumatic tools such as grinders, , glue tools, drills, and more Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Red+Blue Material:Aluminum Package Contents: 4x 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.