Detailed content:
HL-AS08  ROUND ø50mm
Discription
(1) Durable airstone diffuses water in every direction, creating dazzling underwater scenes 
(2) Increases surface agitation, accelerates oxygen replenishment 
(3) Helps release carbon dioxide build-up 
(4) Larger models create a wall of decorative bubbles 
(5) Fits standard airline tubing