Specifications:Water flow controlling design, plant watering tool with control valve.It can control the watering speed of 0-60s per drop of water, slowly release drops for 1 to 15 days.Just connect the automatic watering drip with an empty bottle with 1.1 inch diameter mouth.Then drill holes on the bottom of the bottle of cut it, simple and convenient for use.You will need to count the water amount for different plants and flowers.Perfect automatic watering valve for you can leave home for travel without worrying the plants.Item Name: Automatic Watering Drip ValveMaterial: PlasticQuantity: 4/6/12Pcs (Optional)Bottle Mouth Diameter: 1.1 inchFeatures: Easy to Use, Automatic Watering, Durable, Watering ControlSize: 8cm x 3.5cm x 25.5cm/3.15" x 1.38" x 10.04" (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:4/6/12 x Automatic Watering Drip Valve (Optional Quantity, Bottle Not Included) When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it