Standard size: Both ends of the control valve can be connected to a suitable PE pipe, soft water pipe or drip irrigation pipe. The inner diameter of the shut-off valve is 10mm, which is suitable for standard hose and fits most water pipes or drip irrigation systems. Sturdy and durable: The shut-off valve is made of chemically resistant plastic, so it is resistant to freezing and falling, resistant to aging, durable and non-leakage. Even in harsh environments, it can work continuously for many days, which is convenient and practical. Convenient installation: No additional tools are required. Simply connect the two ends of the control valve to the water line. Then it can be installed firmly without water leakage. Quick installation and very convenient. So you can install or make your own drip tape with these accessories. Multipurpose: The set includes five water flow control valves that allow you to build a quality irrigation system and add water exactly where you need it. It is widely used in gardens, greenhouses, flower beds, patios and other agricultural irrigation systems Note: The data are all measured manually. Please allow an error of 1-3cm. Due to the difference between light and display, there is a certain color difference, which depends on the actual object received