Description Premium quality sponge connects to filter prevent debris from entering the filter barrel, extending filter media usage time. Prevent young fish and shrimp from being sucked into the filter tank. Easy to use directly into the inlet basket. Provides efficient water flow with less clogging for long lasting filtration. Features - Color: Black - Material: Cotton - Size: 8 x 4 x 4cm - Premium quality sponge connects to filter prevent debris from entering the filter barrel, extending filter media usage time. - Prevent young fish and shrimp from being sucked into the filter tank. - Easy to use directly into the water inlet. Good for freshwater and marine environments. - Provides efficient water flow with less clogging for long lasting filtration. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Premium quality sponge connects to filter prevent debris from entering the filter barrel, extending filter media usage time. Prevent young fish and shrimp from being sucked into the filter tank. Easy to use directly into the water inlet. Good for freshwater and marine environments. Provides efficient water flow with less clogging for long lasting filtration. Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!