Description: What this filter with a detachable structure can offer you is that it can be easier to remove and clean. By helping to filter out various impurities, this filter provides a safe and clean environment for fish to grow. Constructed of cotton material, it is safe to use. The length is 7.5cm, and the width is 5cm. It is suitable for aquarium, fish tank filtration. Item Name: Air Filter Material: Cotton Features: Detachable, High Efficiency Filtration, Safe Size Details: 5cm x 7.5cm/1.97" x 2.95" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Air Filter It is suitable for aquarium, fish tank filtration. What this filter with a detachable structure can offer you is that it can be easier to remove and clean. This filter adopts the design of detachable structure, which can be to remove and clean more conveniently. You can easily find that this filter can be more convenient to remove and clean, because it is detachable. It is both convenient and practical of this detachable filter, as it can be easily removed and cleaned.