18PCS Self Watering Spikes Automatic Plant Watering Devices with Control Valve

Each with valve which allows you to control the amount and speed of drip irrigation for different plant and flowers. Easily adjust the valve to meet your plants need with no tools required for installation, easy to operate Made of ABS, thick and toughness, and you can use these plant watering spikes for your indoor and outdoor plants. Item Type: Self Watering Spikes Material: ABS Color: As shown in the picture Product Length: Approx.13.3cm Celsius 5.2in Upper Interface Inner Diameter: Approx.2.7cm Celsius 1.1in Weight: Approx. 157-158g Celsius 5.5-5.6oz Uses: Moisturizing, watering, cooling Application: City greening, greenhouses, gardens, flowers, vegetable greenhouses, etc.