Product Description: Color: Blue, Green Material: Plastic Diameter: 2.54 cm / 1.1 inch Package includes: 12 pieces automatic watering set Description: ADJUSTABLE FLOW RATEWater dispenser plant valve can control the drip speed 0-60 s / 1 drip, slow dripping lasts 1-15 days. You can set the correct water flow according to the water needs of the plant. Ideal for short business trips or short vacations. AUTOMATIC IRRIGATIONAutomatic watering system, delivers water directly to the plant roots. The U-shaped switch design can control the water flow without leakage. Self-watering system eliminates the worry of forgetting to water or leaving it unattended. You don't have to water it every day. MULTI-SCENE APPLICATIONWatering system. It can be used for potting soil, flowers, hanging baskets, herbs, vegetables, and many other plants indoors and outdoors for watering, in gardens and offices. Automatic watering device required for vacations. EASY TO USESuitable for most bottles with an inner diameter of 1.1 inches, such as Pepsi, Coca-Cola, Deet Cola, and Dr. Pepper. You don't need to find another bottle to store water. No tedious installation required. Just drill or cut some holes in the bottom of the bottle.