This flexible brush cleaner is great for cleaning pipes in aquariums. If you do not clean curved hoses or glass pipes, it will reduce the flow rate, so cleaning is essential for regular use! This is a must-have item for all aquarists praise for hassle-free maintenance. Material: Stainless steel, nylon. Size: Total Length: 61.8 inches (155 cm), Large Brush: 11.8 inches (30 cm), 2.8 inches (7.0 cm), Small Brush: 0.6 inches (1.5 cm), 2.6 inches (6.5 cm).