[Compatible with most bottles]: The newly improved automatic sprinkler head in 2020 can be used with European 30mm bottles. Don't waste time finding the right bottle, any bottle can power the automatic sprinkler system. [Latest design]: It is made of PP plastic, durable and can be reused many times. [Automatic plant watering tank]: Water volume control, a plant watering device with a new regulating valve can control the drip speed. You can adjust the flow for 1 to 15 days or more. [Multi-purpose]: Whether it is indoor, outdoor, garden, home or office plants, this automatic watering system can ensure the humidity of the plants. And the watering device is very suitable for potted plants, indoor plants, patio plants, hanging baskets, patio potted plants, hanging plants, etc. [Easy to install ]: No need for tedious installation, you just need to drill a hole in the bottom of the bottle and tighten the drip irrigation nozzle, then insert it into the ground without nails or danger. Name of the product: Smart sprinkler system Material: High quality environmentally friendly PP material Net weight: 15g Quantity delivered: 8pcs