Features: Crafted from premium stainless steel, the fish pond filter brushes deliver superior corrosions resistance and durability for longlasting filtration performances in freshwater and saltwater environment. Featuring with easy installation design, the multipurpose filter brushes effortlessly adapt to various aquarium setups while maintaining structural integrity under continuous water flows and mechanical stress. Great for both novice fishkeepers maintaining home aquariums and professional aquarists managing outdoor pond, the brushes provide great biological filtration for diverse water ecosystem. Perfect for clear water maintenances in glass tanks, concrete fish pools, and recirculating aquaculture systems, effectively trapping debris. Engineered with ecoconscious pet owners in mind, these filter brushes eliminate plastic degradation concerns while supporting sustainable water habitats through reusable filtration solution. Specifications: Component: Stainless Steel Product Size: Approx. 01 size 30cm/11.81inch, 02 size 50cm/19.69inch Type: 01/02 Package Includes: 10PCS Fish Pond Filter Brushes note: Please allow 0-1cm error due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color the item.