【Suitable for most bottles】 Self-Watering spike can be used with most bottles. 
【Adjustable Flow Speed Design】Provide different amounts of water for different plants and flowers, each plant is unique. This plant watering device consists of a slow release control valve switch, automatic plant waterer will not become blocked by mud.
【Easy to use】Without any tedious installation, You just need drill some holes at bottom of bottle or cut it and then a regulating valve that can adjust the speed of the flow
【Multi-Scene Application】This Self-Watering system ensures adequate plant moisture, whether indoor/outdoor plants or gardens, homes or offices. The watering device is very suitable for potted plants, indoor plants, flower, vegetables, terrace plants, hanging basket, deck pots, hanging plants, etc.
package include
4x mixed watering spike(bottles not included)