Bubble Stone for Aquariums, Increases Oxygen Levels, Environmentally Friendly Materials, Suitable for Any Pump, Aeration Pump, Fish Far

With the rotating control design, the size and density of the bubbles can be adjusted. It can generate bubbles, reduce carbon dioxide, and help increase oxygen content. Made of environmentally friendly plastic materials, non-toxic and service life. Condition: 100% Brand New Item Type: Bubble Stone Material: Plastic Product Color: Blue Product Size: Sucker Diameter: Approx. 2.6cm Celsius 1.0in Length: Approx. 3.2cm Celsius 1.3in Application: Aeration pump, fish farming equipment, aquarium, fish , etc. Product function: Used to generate bubbles, help increase oxygen content