PREMIUN MATERIAL - Made of stainless steel and nylon bristles, perfect for cleaning the interior of assorted hoses. Well-made nylon bristles is also not easy to pluck. FLEXIBLE & DURABLE - The cleaning brushs are bendable, easy to inter the hoses, double ended brushes work in small bent pipe such and U-shape tube, remove algae and dirt build up in pipes and tubes. ITEM CONTAINS - Including 3 pcs aquarium water filter pipe air tube hose stainless steel double ended hose brushes. SIZE OF BRUSH - 155cm total length for cleaning long pipe Super handy for cleaning sink plug holes. Double sized heads - brush diameters 2cm for small end, 3cm for large end. PERFECT TOOLS FOR CLEANING - Double ended long brush, flexible & bendable. Great for cleaning small pipes, easy to remove the algae, perfect tools for cleaning water filter pipes, aquarium, fish tank and home kitchen.