Adjustable Valve Irrigation: These automatic plant sprinkler devices with control valve can control drip speed 0-60s/1 drip, slow release drips flow in auto water stations , hard 1 to 15 days or more, depending on the desired duration.Materials: This plastic bottle irrigation is made of ABS plastic. Good resistance to cold and heat, safe and non-toxic. The long nose cone design allows easy root access.Easy to Use: Bottle drip irrigation, quick installation, no need to rotate, just lay it down, plant sprinkler, deliver water directly to plant roots, suitable for most plants. easy flow means your plants get the correct amount of water.Multi-scene application: vegetables, potted plants, indoor plants, day-to-day aquatic plants, patio plants, herbs, hanging baskets, desktop pots, hanging plants, outdoor gardens, small tree, shrubs. Enjoy your vacation: enjoy the time with your family, this self-growing plant system will take good care of your indoor and outdoor vegetables, water plants, potted plants, indoor plants, herbs, garden plants patio, desk plants, hanging plants, shrub.