Features: brand new and high quality Made of food-grade materials, eco-friendly bio-filter sponge and works great without noise, great way to clean and oxygenate your tanks. Ribbing shape sponge holds a lot of beneficial bacteria, can be used with different filter media to enhance water quality. Sponge filters comes with a media container which ceramic bio-filter media inside, will help to remove harmful substance and increase oxygen level in your for tank. Air-water outlet is adjustable so you can change direction and height of the water flow. All parts of the sponge filter are detachable, easy to clean. Package Includes: 1 Piece Aquarium Biochemical Sponge Filter (2 Styles) Specifications: Material: Plastic, Sponge Color: As Pictures Show Style: XY-2880/XY-2881 Size: XY-2880-Approx.14.5x15.5cm/5.70x6.10in XY-2881-Approx.7.5x19.5cm/2.95x7.68in, Sponge Filter Height Approx.16cm/6.30in Weight: XY-2880-Approx.160g XY-2881-Approx.182g 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