Function: These compressed air quick connectors are widely used for connecting pneumatic devices and air pipes to prevent air leakage. High Quality: Made from high-quality iron with a chrome-plated surface for corrosion resistance and reliable sealing. Easy to Use: Simple to install—slide the collar back, insert the fitting, and release the collar to lock securely in place. Compact Design: Small size saves space and makes them easy to carry and store. Helps reduce accidental disconnection of air lines. Wide Application: Suitable for use with pneumatic tools, air compressors, automotive applications, mechanical engineering, and more. Features: - Constructed from durable iron for long-lasting performance - Designed to minimize accidental hose disconnection during tool changes - Enables quick and convenient hose connection and disconnection Specifications: - Product Name: Quick Connector for Compressed Air - Size: As shown in images - Material: Iron - Color: Silver Package Includes: - 4 x SH20 Compressed Air Female Quick Connectors - 4 x PH20 Compressed Air Male Quick Connectors Notes: - Please measure the inner diameter of your air hose before ordering. - Slight measurement variations may occur due to manual measurement. - Package quantity: 8 pieces - Product color: Silver - Product size: Diameter 9mm - Manual measurement—please allow 1–3 cm error.