Material Stainless Steel, Nylon;Spring Length: 155cm/61.02 ,Brush Head Length: 5.5cm/2.17; Designed for cleaning aquarium tubes or pipes,stainless steel spring design, bendable and no deformation. As long as you have any questions about our products, you can contact us and we will solve your problem as soon as possible. Your satisfaction is our greatest happiness. Product description Double Ended Aquarium Fish Tank Flexible Brush Stainless Steel Spring Nylon Tube Cleaning Brush Filter Pump Hose Cleaner Yellow Very Practical and Popular