1.Innovative valve design: our drip spike has a slow release control valve switch..It has two water dripping paths, prevent blockages and ensure a smooth..The drip speed is adjustable, so you can control the water frequency from 1S/1 drops to 90s/1 drops.With this flexibility, you can adjust the watering plan to match the duration of your holiday between 1 and 15 days. 2.Versatile compatibility: our plant waterer set has 500 ml bottles that are practical and visually appealing. They are also compatible with bottles with a diameter of 1.101.18 inches and flexibility and convenience. Whether you have vegetables, potted plants, herbs or hanging baskets, our car plant water is the perfect garden assistant. Enjoy your holiday while your plants get the care they need. 3.Easy to use: our drip irrigation system eliminates the need for complex installations..Just fill the bottle with water, connect the tip and turn it upside down quickly. The coneshaped spike can be easily inserted into the ground and does not hurt the plant root..The drip outlet features a double channel outlet design that drips flowing..No blockage for easy watering. 4.Unique bottle design: each bottle in our set is carefully designed with an inclined angle, which provides better stability when inserted into the ground. The surface of the bottle is patterned to increase friction, facilitate processing and prevent slipping during installation. With a large capacity of 500 ml, the plant watering devices ensure longterm watering.