Features: Discover the innovative Aquariums Cooling Fan, efficiently lower water temperature with its powerful 8 speed Adjust, ensuring a comfortable habitat for your fishtanks. Multiple head designings for various size fishtanks, this cooling fan operates quietly while offering versatilities and ease of installation for any Aquariums size. Great for aquarists and fish enthusiasts who seek a great solution to prevent overheating in their fishtanks, maintaining conditions for their fishtanks. Whether for home, in office, or at a fishstore, the cooling fan is great for stabilizing water temperatures and enhancing the environment of freshwater. The Aquariums accessory promise lonlasting and seamlessly with your fishtanks, great essential addition for responsible and fishkeeping. Specifications: Product Dimension: Approx. Single head 10.6cm/4.17inch, Double Head 20.3cm/7.99inch, Three Head 29.7cm/11.69inch, Four head 39.2cm/15.43inch, Five head 48.8cm/19.21inch Texture: Plastic Type Option: Single Head(EU plugs)/Single Head(UK Plugs)/Double Head(EU Plugs)/Double Head(UK Plugs)/Three Head(EU Plugs)/Three Head(UK Plugs)/Four Head(EU Plugs)/Four Head(UK Plugs)/Five Head(EU Plugs)/Five Head(UK Plugs) Package Includes: 1PC Fishtanks Cooling Fan note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color the item.