1SAFE MATERIAL: Made of premium plastic material, environmentally friendly and safe, easy to replace, suitable for all types of water, no effect on water quality. 2SEPARATION DESIGN: Fish waste segregation box design, segregate impurities and waste, effectively improve water quality, suitable for fish tanks and aquariums. 3FILTER COTTON: One more layer of filter cotton for better adsorption of impurities, with internal filter propeller, anti seize, also has stronger wave making function. 4SILENT OPERATION: Strong suction, low noise, silent operation, will not disturb the fish, need to connect the air pump (does not contain) to use, not recommended for use in fish tanks with sand. 5EASY INSTALLATION: Simple and quick to install, allowing you to set up the internal filter in your fish tank with ease and convenience. 1 x AquariumFilter