brand new and high quality Features: Adopt special technique,made from special materials,high intensity and high heat resistance,durable and corrosion resistance. Specially designed for fish for tank,mesh bag will be great for filtering trash on filter groove or basket. Take the bag out when cleaning or change the filter devices. Easy to clean and quick dry,high intensity and wearproof. 5 sizes can be optional,you can choose better one according to your filter devices. With zipper,it is efficient and convenient to store active carbon or other filtering materials. Excellent for aquarium cleaning. Specification: Material: Polyester Type: Aquarium Filter Color: As pictures shown Size: 1#: 10x15cm(3.94x5.91in) 2#: 12x18cm(4.72x7.09in) 3#: 15x20cm(5.91x7.87in) 4#: 15x25cm(5.91x9.84in) 5#: 20x30cm(7.87x11.18in) Quantity: 5 Pcs/Set(other accessories demo in the picture are not included!) Note:1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 5 x Bag