Features: Provides biological filtration to the aquarium, helps to stable water quality Increase the oxygen solubility Working noiselessly Good permeability, easy to clean Adhere smooth surface with suction cup Easy to clean Sponge Filter only, other accessories demo in the picture is not included 1. Due to different monitors and lighting effects, the actual color may be slightly different from the image 2. Due to manual measurement, please allow 1-3cm deviation Size: as shown (height 12.5cm can be stretched to 15.5cm) Color: black Quantity shipped: 1