Premium material—high quality electric resistance wire, uniform heating, long life and long service life. High temperature resistant ABS material, no deformation and no softening, explosion-proof and corrosion-resistant, no electricity leakage. Product advantage — Double-layer waterproof insulation, can control the temperature of water, easily adjust and read the temperature. High-strength heating wire, double waterproof protection, long service life. Easy to use — The power indicator lights up and the heater starts to work. When the water temperature reaches the specified temperature, the power indicator will automatically turn off. Easy to install — Equipped with 2 strong suction cups, the heater can be fixed stably in any corner of the aquarium and remains stable for a long time, suitable for freshwater use.