Feature: 1. PREMIUM MATERIAL: Professional submersible aquarium heater is made of premium glass material, which is sturdy and lasting, safe and reliable, and guards the living environment of fish. 2. AUTOMATIC THERMOSTAT FUNCTION: Aquarium fish tank heater has automatic thermostat function, intelligent temperature control, stable maintenance of aquarium water temperature, providing a comfortable growing environment. 3. EXQUISITE APPEARANCE: Aquarium heater adopts fine processing technology, exquisite appearance. Automatic constant temperature and precise temperature control, explosion proof and waterproof, fast heat conduction. 4. EASY TO INSTALL AND USE: Aquarium fish tank heater is equipped with suction cup brackets, suitable for all kinds of fish tanks and aquariums, easy to install and convenient to use. 5. ENERGY EFFICIENT: Aquarium heater effectively saves energy, efficient heating, avoiding temperature fluctuations, suitable for all kinds of ornamental fish needs. Specification: Item Type: Submersible Aquarium Heater Material: Glass . Package List: 1 x Heating Rod 2 x Suction Cup Bracket