1,Adjustable Valve IrrigationThese automatic plant sprinkler devices with control valve can control drip speed 0-60s/1 drip, slow release drips flow in auto water stations, lasts 1-15 days or more, depending on how long you want. 2,MaterialsThis plastic irrigation bottle is made of ABS plastic. Good resistance to cold and heat, safe and non-toxic. The long nose cone design allows easy access to the roots. 3,Easy eDrip irrigation bottle, quick installation, no need to rotate, just put it down, plant sprinkler, provide water. Water directly to plant roots, suitable for most plants. Easy flow control means your plants get the correct amount of water. 4,Multi-scene ApplicationPlastic bottle irrigation is suitable for your vegetables , indoor and outdoor gardens, hanging plants, small trees, shrubs, daily water plants, potted plants, indoor plants, herbs, garden plants, hanging baskets, sinks. 5,Ideal for HolidaysIt can take care of your plants when you are on vacation or on business. Don't worry, your plant will die.