Description: Automatic plant watering cans are a simple and effective way to water plants when you're away for weeks or don't have time to care for them. The automatic watering system with a control valve can be adjusted to your needs, precisely releasing water to different plants without worrying about too much or too little. Practical and convenient, the automatic watering system helps you get rid of the worry of leaving your plants unattended. Perfect for watering holiday plants. Easy installation: Uses a standard bottle with a 1.1-inch diameter opening and requires no drilling in the bottom. Widely applicable: Suitable for use with potted plants, indoor plants, patio plants, hanging plants, and outdoor gardens. Specifications: Quantity: 12 pieces/set Material: Polypropylene Color: Random Applicable bottle diameter: 28 mm/1.1 inches Application: Flowers, plants Occasion: Home, office, etc. Package size: 14 * 20 * 4 cm/5.51 * 7.87 * 1.57 inches Package weight: 120 g/0.26 lbs (for 12 pieces/set)