[Material]: Female Socket is made of brass. The plug is made of stainless steel. They are made of high quality materials and high temperature resistance.[Design]: The brass Socket plug adopts a ball lock design to ensure a firm connection every time. The working pressure is up to 5000 psi. The socket is retractable and easy to install. [Package]: 1 x 1/4'' Socket connection (14mm male thread) and 1 x 1/4'' quick connection socket (15mm female thread), the two accessories combined with one use can bring better benefits. [Practical]: A set of standard quick connectors can quickly connect for hose, pump, ball valve, telescopic wand, surface cleaner and spray gun. It is mainly used for garden, lawn, farmland irrigation and pressure washer pump, ect. [Tips]: The 1/4 internal thread sleeve is suitable for 14MM external thread. It is up to you to choose the right accessories, please check the size of the spare part before purchasing.