Features: Efficient Aquariums Cooling Fan Maintain water temperature for fish health with this high performances fish tanks coolers to stabilize environment. Features quiet operations and USB powered convenience, offering noise freely cooling day/night through its compacts external plastic construction. Ideal for aquariums enthusiasts pursues reliability temperature control for freshwaters/saltwater tanks in homes or offices. Perfectly operates in homes aquariums, breeding tanks, or decorative water features where consistent thermals regulation is critical. Space saving vertical blend seamlessly with aquariums setups while preventing overheating during summer months or in warm climates. Specifications: Color:Five Choices Dimension:13.6cm/5.35in Component:plastomer Package Includes: 1pc fish tanks cooling fan 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.