Flow controllable: You can set watering duration for 1 to 15 days or more depending on your needs, with no complicated setup. 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 neck, such as soda or water bottles. No complex installation requiredsimply cut or drill holes in the bottle and attach the adjustable flow valve to control water release based on your trip length. 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, meeting standard safety and quality requirements.