and high quality Nickel-plated or chrome-plated, corrosion-resistant and rust-proof Self-locking design for convenient use Reduces accidental airline disconnection Pneumatic quick coupling for air piping and pneumatic tools Enables tool-free connection and disconnection of pipes Spring-loaded quick release couplers designed for use with compressors to contain air when tools are disconnected To connect, slide back the sleeve, insert the connector, then release the sleeve to lock Compatible with pneumatic pipe connections, air compressors, grinders, air drills, impact wrenches, pneumatic screwdrivers, and other pneumatic tools Specifications: Item Type: Quick Connector Material: Metal Size: SH total length: 66.8mm / 2.6in, PH total length: 52.8mm / 2.07in Color: Silver Optional Type: 2020, 3030, 4040 Quantity: 1 Pair Warm Tips: Ensure proper spatial positioning during hose routing to allow for assembly, disassembly, and debugging, avoiding mechanical interference Use compressed air to clean impurities from hoses and joints before connection Keep wiring neat, grouped, numbered, and bundled for easy inspection Consider operating environment temperature, as it affects hose pressure resistance and reliability Avoid excessive hose length to minimize air pressure loss Maintain curvature radius above specified value and avoid bending too close to joints to prevent leakage and twisting Apply appropriate tightening torque when installing threaded joints Note: No retail packaging included 1cm = 10mm = 0.39inch Allow 0–1cm variation due to manual measurement Product color may vary slightly due to monitor differences Package Includes: 1 Pair x Quick Connector