Description: Name: Automatic flower dripper Type: Watering Spikes Material: PP Size:13.5*2.7cm Color: randomly assigned Quantity: More type of different qty Scope of application: household flower gardening Suitable bottle: Suitable for general beverage bottles such as Coke, Sprite, black tea, Green tea, Mirinda, etc. Mineral water bottles are not good for large-caliber bottles such as Pulse Nutrition Express. Water dripping time: 550ml can be used for 1-7 days, 2000ml can be used for 7-15 days. Product advantages: adjustable knob can adjust the water drop speed to suit the needs of different types of plants 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 .