Constructed from heat-treated hardened steel with a copper-plated finish, this quick coupling compressed air set is robust, rust-resistant, and durable, ensuring a secure and reliable connection for all your pneumatic needs. Featuring an airtight design, each 1/4 inch quick connect coupling has a built-in valve that automatically shuts off the air when switching tools, enhancing safety and increasing efficiency during tool change processes. Ease of use is ensured with our quick connect system for air compressors; simply pull back the collar, insert the plug, and release to lock securely. Detach by sliding the ring backward, emphasizing simplicity and productivity in pneumatic operations. This set includes versatile fittings to suit various configurations: 1 large female connector with female thread, 1 large female connector with male thread, 4 small male connectors, and 4 small female connectors, all designed for 1/4 inch standard air hoses. Ideal for a wide range of applications, this 1/4 inch quick coupling seamlessly fits pneumatic tools, air compressors, and automotive systems, minimizing accidental disconnections and streamlining tool changes. The actual product may have slight color variations, which do not affect performance. Color: Gold Material: Copper Package Contents: 1 x connector with female thread 1 x connector with male thread 4 x small connectors with internal thread 4 x small female connectors with external thread Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement may vary by +/- 1-3 cm.