Description: 【Size Information】: You will receive 1 air line valves, classic combinations can meet your daily use. 【Quality Material】: Pneumatic fittings with reliable PBT and brass materials, not easy to fall off after connection; They don't break easily, and have nice sealing performance, not easy to leak; Air valve can be applied for a long time. 【Working Pressure】: Quick connect tube fittings can be applied to water (maximum pressure: 1Mpa), When be applied with water, the pressure shall not exceed 1Mpa. 【Easy to Use】: After installation, you can freely change the direction of the push to connect fitting without manually inserting or pulling; They are easy installation, flexible, save space, freely rotate, release , easy disassembly. 【Wide Applications】: Quick connect hose fittings are suitable for air duct, pneumatic tools and so on, you can use them to connect others and different pneumatic components. Specification: Material: PP Size Chart: 4mm: 5cmx3.2cm/1.97inchx1.26inch 6mm: 5.1cmx3.2cm/2.01inchx1.26inch 8mm: 5.65cmx3.5cm/2.22inchx1.38inch 10mm: 7.2cmx4.2cm/2.83inchx1.65inch Package Includes: 1 Pneumatic Ball Valve(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.