Number of items:1 Product Dimensions:1 x 1 x 1 cm; 47 Grams How to Use: Put the cotton piece into the bubbler (the newly bought bubbler contains cotton piece, ignore this step), connect the suction cup. After installation, connect the air pump to the bubbler diffuser. Specification: Item Type: Air Stone Bubble Diffuser Material: Plastic Weight: Approx. 24g/ 0.8oz Package List: 2 x Bubble Diffuser2 x Suction Cup 2 x Replaceable Cotton Piece Produces Small Dense Bubbles QuietlyThis 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, make dazzling curtain effect Good Oxygenation EffectSmall and dense bubbles, uniform,high concentration of oxygen, to achieve a good oxygenation effect.The use of replaceable cotton sheets is also very easy to disassemble and durable Double Oxygen Dissolving RateGreat to add oxygen to your hydroponics growing system, Increase oxygen levels, lower CO2 and raise PH Simple OperationIt has a strong plastic suction cup of good quality, which can be stably and fixedly adsorbed to the aquarium in various positions,acrylic and glass materials.Use low pressure available design suitable for any wattage air pump The Bubble Density Can Be ControlledThe air volume of the nano bubbler can be rotated by itself to adjust the bubble size and density.Durable, great for home, office fish tank, aquarium and hydroponics nutrient tankspersonalized christmas gifts Produces Small Dense Bubbles QuietlyThis 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, make dazzling curtain effect Good Oxygenation EffectSmall and dense bubbles, uniform,high concentration of oxygen, to achieve a good oxygenation effect.The use of replaceable cotton sheets is also very easy to disassemble and durable Double Oxygen Dissolving RateGreat to add oxygen to your hydroponics growing system, Increase oxygen levels, lower CO2 and raise PH Simple OperationIt has a strong plastic suction cup of good quality, which can be stably and fixedly adsorbed to the aquarium in various positions,acrylic and glass materials.Use low pressure available design suitable for any wattage air pump The Bubble Density Can Be ControlledThe air volume of the nano bubbler can be rotated by itself to adjust the bubble size and density.Durable, great for home, office fish tank, aquarium and hydroponics nutrient tankspersonalized christmas gifts