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 hose and will not leak. 1/2" Shut-Off Valve - Connect and configure drip irrigation pipes according to the desired layout. If your tube has an outer diameter larger than 16.5 mm, we do not recommend purchasing it. Large butterfly handle, easy to reach, low-torque twist handle. The red handle can be adjusted for easy operation or completely turned off. Widely Used: Ideal for use with raised beds, residential, agricultural, greenhouse, and farm irrigation applications.