Features: Adjustable Valve: The flow rate can be controlled. The plant watering device with control valve can control the dripping speed Special Design: Compared with some other old devices you can control the flow rate more precisely and control the time of watering. Easy to Operate: Just screw the beverage bottle on then gently tie a hole at the bottom of the bottle or you can cut the bottom of the bottle and then insert the bottle into the soil. Multiple Applications: This drip irrigation switch valve can be used in many places such as home garden flower bed lawn crop irrigation urban greening etc.; nice accessories for an irrigation system. Customer Service: If you have any questions please feel free to contact us we will propose solutions for you as soon as possible. Specifications: Material: PP Size: 6.5*25cm Weight: 108g includes: 1 * Plant Waterer