Features: Variable frequency regulation technology allows for the adjustment of water Flows intensity and fluctuation frequency according to demand, simulating natural ocean environment. With extremely low noise during operations, ensuring a peaceful and suitable aquariums environment. High efficiency motor, energy-saving, extends service life, and provide stable and strong water Flows. Multiple water Flows model is available, including gentle fluctuations and strong surges, promote healths growth. Waterproofed and anticorrosion component, suitable for various water quality environment, strong durability, ensuring long-terms reliability operations. Specifications: Color:Four Elections Dimension:13×8×9.2cm/5.11×3.14×3.62in Component:abs Package Includes: 1pc Variable Frequency Waves Pump note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.