【New Drip Irrigation Kit】 - This drip irrigation device has a new design to ensure that water can drip precisely to the root of each plant, avoiding the problem of insufficient or excessive watering. It is very suitable for indoor or outdoor potted plants, garden plants, patio pots, hanging plants or other plants. 【Adjustable Valve】 - Precise valve control switch, can control the drip rate at 0-90s/drop. You can set the drip time to 3-15 days or more as needed. The tricky part is matching your drip rate to the plant's needs, tray size, and evaporation rate, especially in summer and direct sunlight. 【Suitable for Various Bottles】 - You should choose a suitable water bottle depending on the plant's water needs and the flower pot size. Our automatic plant watering device is suitable for bottles with a caliber of 2.5 to 3 cm. Most cola and soda bottles on the market can be used. 【Stable Support】 - Our irrigation device uses a cross-shaped support design, which makes it easier to insert into the soil and also increases the stability of the waterer during use, and it is not easy to tip over. The self-watering plant spikes can support water bottles from 500 ml to 2 liters. (It is recommended to only use a 2-liter water bottle for large flower pots). 【Easy to Use】 - Our irrigation device is made of PP plastic, with high strength and toughness, good heat and cold resistance, you can use it repeatedly. No tools are required for installation, no need to drill or cut holes in the bottom of the bottle. The operation is simple and there is no need to worry about leaks.