【Package】10 PCS of 1.6 inch air stones. (Note: Soak them no less than for 30 minutes before usage)
【Dimension】1.6″D x 0.6″H, Fits for three/16″ or 4 mm inner diameter tube.
【Protected & Healthy】Product of Protected, washable subject matter, which is important to health of fish or plants.
【Holy Bubbles】great quality carborundum make air stone create an abundant cascade of small to tiny bubbles reasonably than a limited choice of larger bubbles.
【Versatile】Absolute best choice for aquariums, hydroponics, aquaponics, dechlorinating and so forth.