【2019 NEW DESIGN】Stop wasting your time to find the right bottle anymore, our plant watering device is suitable for all most bottles. It not only can be used for 1.1 inch bottle, all the bottles which opening is 0.8 inch -1.9 inch can be suitable. 【EASY TO USE】No tools are required for installation, No Need drill or cut holes at bottom of the bottle, place a regulating valve that will adjust the speed of flow. You can adjust the speed of the flow, so that the speed of the flow can be adjusted according to the length of the holiday. It Can continuously release the dropping for 1-15 days. 【MATERIAL】This plant watering devices is made of PP plastic, Each irrigation drippers ensure long service life. You can use it repeatedly.