Description High quality foam rubber is connected to the filter to protect the scraper from entering the filter tube and extend the life of the filter media. Prevent young fish and shrimp from being sucked into the filter container. Easy to use directly in the inbox. Provides efficient water flow with less backflow for long-term filtration. Features Black color Material: cotton Size: 8 x 4 x 2.2 cm Top quality foam rubber is connected to the filter to protect the scraper from entering the filter tube and extend the life of the filter media. Prevent young fish and shrimp from being sucked into the filter container. Easy to use directly in the water intake. Good for freshwater and marine environments. Provides efficient water flow with less backflow for long-term filtration. The package includes 6 x pre-filter foam sponges With the concept of customer first, we provide you with 24/2442 customer service. No matter where you are and what problems you encounter, we will be the first to solve them for you, to ensure your shopping experience is worry-free.