Quality Construction: High-quality, double-stitched construction ensures these filter socks are reliable and long-lasting. Suitable for both planted freshwater and seawater tanks, as well as for ornamental fish tanks. Prepared for Use: Pre-rinsed for instant use, eliminating the need for initial cleaning before deployment in your aquarium. Providing a quantity that supports regular rotations and maintenance for most aquarium setups. Functionality: Equipped with internal plastic handles for easy installation and removal during maintenance. and Reusability: The high density of interspace and excellent breathability that the filter bag fiber will not fall off even after prolonged use, allowing for multiple cleanings and repeated use. Compatibility: Designed to fit Waterbox Aquarium models AIO 35.2, 50.3, 65.4, Marine X 60.2, 90.3, 110.4, Pro Reef 70.2, 100.3, 130.4, Fits Eshopps Aquarium models, and all 4 inch filter sock holders. color: White Material: fiber Package Contents: 10 x fish tank filter bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.