Feature: 1. Using high-quality PP material, non-toxic and tasteless, green and environmentally friendly. 2. The bottle mouth is universal, there is no need to poke holes at the bottom of the bottle, the appearance is more beautiful, and the watering is stopped by the influence of the water pressure, and the business trip can be truly relaxed for 3 to 20 days. 3. The oblique insertion design is suitable for most brands of beverage bottles on the market. It can be arbitrarily matched and the water speed can be adjusted. 4. The water flow is too small to be adjusted. Rotate the regulator to adjust the drip volume. Loosen to the right to increase the drip speed, and tighten to the left to decrease the drip speed. 5. Ordinary 550ML beverage bottles can be adjusted at a slow speed, and can be dropped for 5-7 days, and 2 liter beverage bottles can be used for 7-20 days. 6. Suitable for all kinds of flower pots, suitable for the water replenishment cycle of plant roots. Specification: Material: PP Length: 15.2cm Applicable capacity: 500-2000ml Caliber of connecting container: Inner diameter 20.5 to 25mm Instructions: 1. Connect the regulating valve 2. Fill the prepared bottle with water 3. Connect the dripper and bottle upside down 4. Adjust to the required water flow Package List: 12*Self Watering Devices