Excellent Material: It is precision machined with the highest quality nickel-plated brass, which is higher quality, stronger, more durable and longer lasting than ordinary plastic pneumatic connectors. Good Flexibility: The hose body can be rotated 360 degrees even when installed, which is simple and flexible, easy and flexible, and the oval release ring is more convenient to disassemble. Safe and Reliable: High temperature resistance, high temperature resistance. pressure, not easy to fall off, air pipe fittings are your best choice. Easy Installation: The connector has a simple plug-in design, high-precision threads ensure good sealing performance and compressed air is easy to install without additional sealing. Wide Range of Use: The straight heads can be used to connect polyethylene, nylon and PU pipes, mainly for quick connection air hoses, pneumatic tools and air-water hose fittings.