Description This is a filer mesh bag. When using them, you put the filter material into the mesh bags and then put them into the filter tank or filter bucket. When replacing or cleaning the filter material, you should remove the filter bags directly. Features -Color: White, black -Material: Mesh cloth -Size: 20.00X15.00X0.10cm/ 7.86X5.89X0.04inch -Owning the strong wear and break resistance ability, very durable. -The bag opening is equipped with zipper design, convenient for cleaning and maintenance -Designed with the mesh, it has good water permeability and is not easy to block -You can store the biosphere, activated carbon, as well as volcanic and other filtering materials into them -With wide application, this filter bag is suitable for fish tank and aquarium etc. Owning the strong wear and break resistance ability, very durable. The bag opening is equipped with zipper design, convenient for cleaning and maintenance Designed with the mesh, it has good water permeability and is not easy to block You can store the biosphere, activated carbon, as well as volcanic and other filtering materials into them With wide application, this filter bag is suitable for fish tank and aquarium etc.