Apply for: PU hose ,Nylon Pipe ect. This feature allows you to easily connect the fittings to different types of tubing, providing adaptability for various projects with ease Medium: Air and Water. these pneumatic connectors are designed for both air and water. Experience reliable performance in a range of settings, from air compressor systems to watering arrangements, making it a practical choice for multiple needs Shape: Straight. Experience unmatched convenience with the straight pneumatic fittings featuring a one touch fitting, making installation a breeze for customers of all skill levels Thread Size (Male): M5. The dependable construction of these fittings guarantees a strong, leak-free seal, offering peace of mind and consistent performance for your pneumatic applications Inner Diameter (Blue end): 4 mm. 10 pcs M5 pneumatic straight through quick coupling, Weight: 0.0440924524 pounds, Manufacturer: PXYELEC