■Ibuki Air Stone Features: ■Ibuki Air Stone is made with uniform particle ingredients at a high temperature of 1200 degrees, so you can enjoy fine and uniform bubbles, but it is very durable and will not fall apart after use. This product will last you a long time.
Please note: Ibuki Air Stones are soaked in water before use, and do not remove the air inside the stone once before use, they will not produce fine and clean bubbles. In addition, for long air stones, bubbles may come out from one side if placed at an angle, so please make sure to set it horizontally. There are many returns for reasons such as "air is not escaped", but these are due to insufficient air deflation, so this is not a defective product.