Features：
Increased oxygen， mute
Suitable for : Fish Tank， Aquarium
Import Diameter : 4.8mm/ 0.19"
Size(Approx) : 3.9 x 1.3cm / 1.5" x 0.49"(L*W);
Color: Blue
Size: 15mm X25 mm
Material : Mineral， Plastic;

Package includes:
10 X Aquarium Bubbles Air Stone