[DETAIL]<br>Features:<br>Ozone aerated stone, bubble stone, using super hard gold steel sand, after high temperature sintering, good gas diffusion, good filtration, ozone resistance, corrosion.<br>Increases oxygen levels, lowers CO2 and increases PH, creates water currents.<br>It is an important tool for successfully maintaining aquatic fish for the respiratory process.<br>Durable, can be reused and washed several times.<br>Creates bubbles in the aquarium when attached to an air pump (air pump and air tube not included).<br>Specifications:<br>Colour: White<br>Material: hard golden steel sand<br>Item size: approx.dia.5 cm, Dia.10,8 cm<br>Package includes: only 1 * air bubble stone or 1 * ari bubble stone with parts (tubes not included in packaging)<br>Suitable for 4 mm inner diameter soft tube, tubes must be purchased separately<br>Note:<br>-Need to connect the air pump to use it<br>Because this bubble stone has very delicate bubbles, we recommend connecting a high-powered air pump for the first use.<br>-Soak in water for 15 minutes before use.<br>For long-term use, if there is a blockage of dirt and the bubbles are reduced, please remove it from the aquarium and wash it again and again.<br>-The air stone can be used several times.<br>1.Size is measured by hand, there may be some variation, but this does not affect use.Please read the product size on the details page carefully before purchasing.Thank you.<br>2. Due to different ambient light and different display device settings, there may be some discrepancies between the images you see and the items themselves. Please understand.<br>3.Exact weight may vary.<br><br>[ATTRIBUTES]<br>- Battery Included: No<br>- High-concerned chemical: None<br>- Is Smart Device: No<br>- Battery Included: No<br>- High-concerned chemical: None<br>- Is Smart Device: No<br>- Origin: Mainland China