SPECIFICATIONS package list: 12pcs/24pcs Type: Watering Kits Type: Watering Kits Origin: (Origin ) Model Number: 17002757 Material: Plastic Item Type: Auto Drip Irrigation Watering System Function: Auto Drip Irrigation Feature: Automatic Waterers Brand Name: sd24 Features: 1. The flow rate can be controlled, and the plant watering device with a control valve can control the drip speed 0-60s / 1 drip, and the sustained-release drip lasts 1-15 days 2. Simple and convenient, without any cumbersome installation, just drill some holes in the bottom of the bottle or cut the tail of the bottle 3. Accurate water volume, to provide different amounts of water for different plants and flowers, do not become a plant killer, other watering plants either have too little or too much water. In some plants, the old leaves just turn yellow and fall. But if the new growth is yellow, it may be a sign of over-watering or underwater 4. Suitable for brand bottles: Pepsi, Coca-Cola, Iced Black Tea, Lipton, Deet Cola, Aqufina bottles. Specification: Type: Watering Spikes Material: PP Size:13.5*2.7cm Quantity: 12/24/36Pcs Product color: blue,green ,or random Package Listing: 12pcs or 24pcs watering dripper (Color random) Product Pictures FREE SHIPPING IS INCLUDED!