Product information:

Name: 8D non-adhesive filter cotton
Thickness: 2CM
Specifications: 11*50CM, 30* 40CM, 40*50CM, 30*120CM, 50*120CM, 40*200CM

Features:
Washable 300 times
100% does not hurt the fish
Water permeable and breathable
No clogging, no overflow

Packing list:

8D non-adhesive filter cotton*1