Product description ------------------- - Latest upgraded version, adjustable valve and more precise. - Suitable for inner diameter (0.8-1.9 inch) of the bottle. - With anti-fall bracket, can maintain stable with a bottle of water on it. Specification: Material: High-quality plastic Color: Green\Orange Size: Approx.16*4.5cm\6.3*1.77 inches Accurate Amount of Water: Days=ML（water）X S / 4320 ML=Volume of water S= Time of each drip For example: 1000MLx43/4320=10 days (1 drip/43s） 550ml water supply time about: 1~5 days 2000ml water supply time about: 7~15 days NOTICE: 1.Airhole, please make a hole at bottom of a bottle or cut it. It can control the flow rate better 2.Please insert the water outlet of the valve into the soil, Inserting the extended water outlet pipe into the soil can effectively prevent the device from stopping dripping 3.Please adjust the dripping speed of the water before inserting the pipe into the soil. The actual drip rate of the valve may be greater than the initial drip-rate. This is a normal phenomenon. Package Includes: 24* Plant Watering Devices Safety Warning -------------- Please refer to the following general safety precautions: 1. Make sure the drip irrigation kit is installed correctly to prevent leakage or damage caused by water. 2. Connect the water source safely, avoiding spills or flooding. 3. Handle the components of the kit carefully, as they may contain plastic materials that could cause injury or damage if mismanaged.