Worry-free planting: Plant sprinkler, automatic plant sprinkler is a good helper for gardening, you don't have to take care of your plants every day; The plant watering device is perfect for scientific planting, because different plants have different absorption, self-watering spikes can prevent over-watering and make plants healthier. Self-watering tip. Adjustable Switch - CONTROLLED Unlike other versions, the newly upgraded valve can effectively control the water flow. You can stop traffic for 1-15 days or more depending on how much time you need. Improved valve flow control is more accurate and never kills your plants because the water flows too fast or too slow. SUITABLE FOR MORE BOTTLESNew upgrade design can be used for most bottle sizes. Don't waste time trying to find the right bottle. The self-watering system can work with most bottles. LATEST DESIGNWith the new anti-tip bracket, your self-watering system cannot tip over if the attached bottle is too big. The switch changed from a circular shape to a square shape. The spikes do not rotate with the switch and are easy to adjust and water continuously. Easy to use: Planting spikes automatic watering Without any tedious installation, all you have all you have to do is drill a hole in the bottom of the bottle and tighten the drip irrigation devices, then insert it into the ground, no nails needed and no danger.