Description: 【Material】Made of glass, simple and beautiful. Comes with suction cup for easy installation on your aquarium. With surface oil film treatment function, easy to clean. 【Feature】Aquarium lily tube, inlet and outlet set, water surface skimming filter.Inflow and outflow filter tubes are designed to create the ideals flow of water for growth. 【Function】Effectively remove oil stains on the surface of fish tank and fish tank, and provide a fresh and environment. 【Adjustable】The inflow flow at the bottom is adjustable, and the water level of the oil absorption film can be controlled, which is convenient for filtering and isolating impurity water and prevent fishs and from inhaling. 【Durable】The intake float is positioned consistently at the surface and the flow control valve enables you to increase or decrease flow rate to your filters. Specification: Material: Glass Color: Clear Size Chart: 1cm/0.39inch 1.3cm/0.51inch 1.7cm/0.67inch Package Includes: 1 Aquatic Inflow Lily Pipe Note: Please allow slightly errors due to manual measurement and different monitors.Customer satisfaction is our primary concern. If the product is somehow cracked or broken during shipping, please feel free to contact us. We will try our best to give you a satisfactory solution.