Adjustable Watering System: Automatic watering system with a drip irrigation valve that can be controlled, the switch controls the water flow. Turn the knob to control the drip rate, the water can continue to flow for 3 to 20 days. Eco-friendly and Durable: The plant watering system is made of quality PP material, which is of high strength and toughness, good heat and cold resistance, safe and reusable. Easy to Use: The installation of the watering funnel is very simple. The indoor watering system is suitable for 90% of the bottles on the market with an inner diameter of 1.1 inches (28-30 mm). In addition, plastic bottles can be effectively recycled to avoid waste and protect the environment. Multi-application: The adjustable plant watering system is effective both indoors and outdoors. Suitable for pots or potted plants, vegetables, balcony plants, houseplants, patio plants, flowers, herbs, hanging baskets, table pots, hanging plants, garden plants, greenhouse plants, etc. Help