•Made of quality PP material, non-toxic and durable for long term use • Watering Control: Plant watering devices with control valve is design for control the velocity of drip • Practical and Convenient: Self-watering system helps you to get rid of worrying about leaving your plants unattended. Perfect for vacation plant watering • Durable Material: Made of durable, safe and non-toxic PP materials means it last long time and keep your plants healthier • Easy Installation: Using a standard bottle with a 1.1 inch diameter opening, and no need to poke holes at the bottom of the bottle • Widely Applicable: Fits for use with potted plants, houseplants, patio plants, hanging plants and outdoor gardens Specification: • Material: PP • Color: Random • Applicable bottle diameter: 28mm 1.1inch • Patent number: 006537643-0001 • Item Size: 16.5*5.5cm 6.49*2.16inch Package included: •1 Set x Automatic Plant Waterers