Feature: 1. Made of high quality fiber, high efficiency filtration, multilayer structure, filter most of the impurities easily. 2. Strong water permeability, the softness of wool cotton has a super strong buffer action on water. 3. Compact fiber without plastic, no phenol and other harmful substances, to ensure the safety of fish. 4. Strong drainability, soft and elastic, can be used repeatedly after washing, not easy to damage, not easy to block. 5. Reusable cottom filter floss, can effectively reduce the replacement, environmental-friendly. Specification: Item Type: Fish Tank Cotton FilterMaterial: Fiber+ Wool CottonSize: Approx. 150 x25cm/ 59.1 x9.8inWeight: Approx. 296g/ 10.4ozPurpose: Cotton Filter . Package List: 1 x Cotton Filter