Features 1. By using the water volume adjustable function, this self watering spike can automatically water your plants up to 7-20 days. Note: Watering situation may vary due to different conditions. 2. Compared with other models in the market, our self waterer has the advantages of stable water flow, not easy to block and easy to add water. 3. This self watering planter insert spikes suitable for work with most plastic bottle. You can choose the corresponding plastic bottle according to the size of the flower pot. 4. After installing the base of the watering device, pour the water bottle into the base for drip irrigation, there is no need to move the base of the plant watering devices again. 5. The auto watering spike is suitable for watering indoor flowers, hanging plants, potted plants, house plants, desk pots, etc. Specification Material: PP, Polyester Color: White, Green Size: Total Length: 70 cm, Outer Length of the tube: 52 cm Weight: 136 g Capacity: 500 ml Package Include: 5 x Self Watering Spikes