Description: 【360 Degree Rotation】The float fish tank oil skimmer adopts hydrodynamics that the water flow rotates into the and the oil film is automatically rolled into the flower basket. 【High Quality Material】The aquatic lily pipe is made of premium acrylic material, with highly transparent body, durable, lightweight and long using time. 【Great Features】The fish tank oil skimmer is convenient to operate and it can effectively remove the oil film on the water surface, lightweight and small, easy storage and carrying. 【Easy Installation】The water inlet is recommended to be 3-5cm away from the water level, so that the flower basket has a floating space to meet certain water level change. And The flower basket should be installed 90 degrees perpendicular to the water surface. 【Wide Application】The aquarium oil skimmer is widely suitable for water inlet of various filters, such as submersible pumps and filter barrels. Specification: Material: Acrylic Color: Clear Size Chart: Tube Inner Diameter: 1.6cm/0.63inch 12.5cmx4.1cm/4.92inchx1.61inch Tube Inner Diameter: 2cm/0.79inch 13.2cmx4cm/5.20inchx1.57inch Package Includes: 1 Aquarium Surface Skimmer(6 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.