*Upgrade Version--The special design of the upgrade meets different bottle mouths. The improved adjustable switch does not leak. Increase the support frame to prevent the water bottle from being blown down by the wind. Control flow rate, scientific drip design, you can set the flow rate as required for 1-15 days or more *Easy to use-- Pepsi, Coca-Cola, Lipton, Deet Coke, Aquafina or other 1.1-inch bottles. No need for any complicated installation, just drill some holes in the bottom of the bottle or cut it, then adjust a regulating valve with adjustable flow rate to provide different water for different plants and flowers *High Quality-- The Plant Watering Device is made of high-quality ABS plastic, high quality means that each Device has a service life of more than 3-Years and is durable