Controllable flow rate: You can set the flow rate to 1-15 days or more depending on how long you need it, no hassle to set up. The upgraded unit is more airtight and automatically waters plants without stopping drainage by clogging with mud or flooding your flower box and killing everything. With a 1" ID capsule, there's no fuss to set up, all you need is to drill some holes in the bottom of the bottle or cut it, then a regulating valve that adjusts the flow rate so that you can adjust the flow rate according to the length of your holiday. Multi-scenario application: whether your plants are indoors or outdoors or in the garden, at home or in the office, create a self-watering system to ensure that your plants always have enough water. Ideal for potted plants, house plants, patio plants, hanging baskets, pots on desks, hanging plants and outdoor gardens. Economical and high quality : This plant watering system is made of ABS plastic. It is a green product approved by the environmental authorities