Adjustable valve The flow rate can be controlled. The plant watering Device with control valve can control the dripping speed of 0-62 s/drip, and the sustained drip lasts for 1-12 days, The bigger the bottle of water, the longer they water your plants; Water discharge is approx Only adjust the valve to Meet your needs without complicated setup steps. Easy to operate Just screw the beverage bottle on (suitable for 1.1 inch beverage bottles), then gently tie a hole at the bottom of the bottle, or you can cut the bottom of the bottle and then insert the bottle into the soil. New upgraded design Compared with some other old devices, you can control the flow rate more precisely and master the time of watering. The blue and green colors are also more aesthetically pleasing. Most importantly, it does not stop watering due to water pressure. Multi-Scene Application Vegetables, potted plants, houseplants, Outdoor Garden Plants, water plants day-to-day, patio plants, herbs, hanging baskets, desk pots, hanging plants, outdoor gardens, small tree, shrubs. IDEAL FOR TRAVELERS It's perfect for taking care of your plants while you're on business or traveling. Enjoy your vacation.