Description: HIGH QUALITY : shell made of plastic, durable permeable honeycomb shaped cotton has uniform adsorption capacity and does not affect water flow. SILENT: Circulating oxygenation, the specia chamber can produce a lot of tiny bubbles, increase the amount of oxygen dissolved, no noise and save electricity. FEATURES: 360 degree adjustabl outlet. Multilayer filtering, each layer of filtration goes through procedures such as physical and biochemical filtration water. Each layer of filtration goes through procedures such as physical and biochemical filtration water APPLICATION: The tank be used as water filter, supply.Suitable for aquariums keeping and rearing tanks or small water features. Suitable for tanks below 40L. TANK DECOR: Exquisite appearance, transparent shell, cute, does not occupy the space of the tank, and can be placed at will. Specification: Material: Plastic Size: 7.5x7.5x11cm/2.95x2.95x4.33inch Package Includes: 1 Piece Aquarium Filter Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!