Product Description Size: 10.5 cm in diameter Color: seven colors Material: plastic Package content: 1 piece of aquarium light 1. Add More Oxygen: This aquarium bubbler can be connected to the air pump to create an air bubble wave effect (air pump not included). This aquarium bubbler creates more air bubbles to improve oxygenation and gas exchange. This is good for the health of the fish. 2. IP68 WaterproofMulticolor Bubbler This aquarium accessory can be easily powered by an air pump (not included) of more than 4W and is connected to an air hose that generates more oxygen to keep your fish healthy. 3. Convenient to Use: No more complex instructions, plug and play, only need power supply, can slow down the flash and change colors automatically. 4. With suction cups: Can easily fix the bubble light to the specified position of the bottom after sinking into the bottom, which will not disturb or hurt the fish. 5. Versatile Use: The aquarium light can be submerged in water, suitable for use in fish tank, fish tank, fountain, etc. A rainbow pattern: