Description: Material: Plastic Color: Random Feature: 2. Design for control the velocity of flow, plant watering devices with Control valve can control the drip speed 0-60s/1 drip, Slow-release drips lasts 1-15 days. 2. Easy to use, without any tedious installation, all you need just drill some holes at bottom of bottle or cut it. 3. Accurate amount of water, give different amount of water for different plant and flowers, don't become a plant killer, others either water too little or too much. In some plants, old leaves just turn yellow and drop. But if new growth is yellow, it could be a sign of overwatering or underwatering. 4. Watering bulbs Fit most below brand's bottle: Pepsi, coca cola, Lipton, Deet Coke, Aquafina or another bottle that have 1.1inch inner diameter capsule. 5. Enjoy your vacation with your family, your plants leave to watering spikes prefect for your vegetables, indoor outdoor garden, water plants day-to-day, potted plants, houseplants, herbs, patio plants, hanging baskets, desk pots, hanging plants, small tree, shrubs. Notes: 1. Please allowed 1-3mm differences due to manual measurement, thank you for your understanding! 2. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item. Package Includes: 6 Automatic Watering Devices