Fangrui Product Details 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 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