Flow controllable: Set watering duration for 1 to 15 days or more based on your needs, with no complicated setup required. The upgraded design is more sealed, preventing clogs from mud and avoiding overwatering that could damage plants. Easy to use: Compatible with bottles that have a 1.1-inch inner diameter cap, such as common plastic beverage bottles. No complex installation—simply cut or drill holes in the bottle bottom and attach the adjustable valve to control water flow rate according to your watering needs. Multi-scene application: Ideal for indoor and outdoor plants, whether at home, in the office, or in the garden. Creates a self-watering system to maintain consistent moisture. Suitable for potted plants, houseplants, patio plants, hanging baskets, desk plants, hanging planters, and outdoor gardens. Economic and high quality: Made from ABS plastic, this watering system is durable and environmentally friendly. Each watering spike is designed to last over a year, offering greater durability compared to similar products.