Pack: 10 pieces, strong and durable. Easy installation. EASY TO INSTALL: No glue, tools or accessories are required. Simply push the tube firmly onto the barb and tighten the nut. The screw cap increases the tightness of the pipe and will not leak. 1/2" Shut-off Valve - Connect and configure drip irrigation pipes to your desired layout. If your tube has an outer diameter greater than 16.5mm, we do not recommend purchasing it. Large butterfly handle, easy to reach, low torque rotating handle.The red handle can be adjusted for easy operation or completely off. Widely used: ideal for use with raised beds, residential, agricultural, greenhouse and agricultural irrigation applications. Universal belt accessories drip irrigation system, compatible with 16mm to 17mm pipe sprinkler system. Allows the creation of a personalized design for your sowing area. High quality anti-ultraviolet materials: Drip irrigation elbows are mainly made of plastic, safe to use and durable. Leak-free closure adjustment design: the coupling connector with end beams and swivel lock, just push the tube firmly into the end without glue or other tools, to complete a secure connection. And the spin lock adds extra grip to the tuber.