Material: Mineral stone + Plastic
Package included:1 x Air Stone
100% brand new and high quality
Net Weight: Approx 32g
Suitable for inner diameter 4mm soft tube.
Size: Approx. 40mm x15mm (D*H)
Color: Gray
Increase oxygen levels, lower CO2 and raise pH
It is an important instrument to successfully keep aquatic fish for respiration process
Durable, washable and sintered by high temperature, different from other air stones
Creates bubbles in fish tank while attached to an air pump
Creates water currents and dazzling underwater scenes
Easy and convenient to use.