Fish Tank Thickened High Density And High Permeability Filter Cotton

Product information:
Color: 2 m long [4 m], 3 m long [6 m]],4 m long [8 m],5 m long [10 m],50cm long [one meter]],20cm long
Material: Plastic
Specifications: width 10cm * thickness 3cm, width 12cm * thickness 3cm, width 20cm * thickness 3cm, width 30cm * thickness 3cm, width 40cm * thickness 3cm, width 50cm * thickness 3cm, width 60cm * 3cm thick, width 1 m * 3cm thick