This listing is for 6 bags of Activated Carbon in 6 mesh bags:

• Ready-to-use carbon filter bags, convenient for use with your canister filter, power filter, or pond filter.
• Eliminates odors, colors, and organic wastes and keeps tank water crystal clear.
• Fast working and long-lasting.
• Phosphate-free activated carbon.
• Safe for both freshwater and saltwater tank
• The carbon is bagged in a mesh bag. Mesh bag allows precise placement of carbon and ensures granular media not to travel through pumps and pipes.
• Media bag size: 8.0"x 5.5" inches. 
• The zipper-designed mesh bag is reusable.

** Note: Always rinse carbon well to remove excess carbon dust before use **