Package included:40pcs drip for bottleand40pcs switch and1pz manual instructions.Material: PP plastic, convenient and practical. Bottled drip irrigation, which is durable, sturdy, environmentally friendly, reusable, recyclable and durable.Adjustable valve: The flow rate can be controlled.The plant watering device with regulating valve can control the drip speed from 0 to 60 seconds/drip, and the continuous drip lasts 1 to 15 days.Adjust the valve only to meet your needs without complicated setup steps.Save time and water.Easy to Use: Drip irrigation bottle, quick installation, no need to rotate, just put it down, plant waterer, provide water directly to plant roots, suitable for most plants. Easy flow controlmeans your plants receive the correct amount of water.Suitable for bottles: Pepsi bottle, Coca-Cola bottle, 1.1 inch inner diameter bottles.(Bottle not included).most beverage bottles.