Description: Produces Small Dense Bubbles Quietly: This aquarium air bubble stone which can create a very dense cloud of small bubbles quietly. when the bubbles burst into the water, the sound is quieter. Create lots of thin bubbles in fish tank. High dissolved oxygen: This air stone releases the bubbles more smaller, denser, uniform, which makes double oxygen dissolving rate in water. Easy to Install and Use: With 2 suction cups makes the air stone adsorbed on the tank firmly. Durable, great for home, office fish tank, aquarium and hydroponics nutrient tanks. Widely Use: This fish tank atomiser creates bubbles in fish tank while attached to an air pump, suitable for use as a decoration or provide oxygen for household aquarium and hydroponic plant. Durable: Aquarium bubble diffuser, durable as well as elegant, wear resistant, reusable, energy saving and long life service. Specification: Material: Acrylic Package Includes: 1 Piece Aquarium Diffuser with Suction Cup Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!