Need to scrub out the inside of a tube or pipe? These brass wire brushes are the tool for the job. You get 2 brushes in the pack. Each brush has a 20mm (about 0.8 inch) diameter head made of stiff brass bristles, attached to a long, flexible 30cm (about 11.8 inch) steel wire handle. The brush head itself is 11cm long. The brass bristles are great because they're stiff enough to clean but softer than steel, so they're less likely to damage softer metal surfaces like copper or aluminum tubing. The long, bendable wire handle lets you snake it into curved pipes or hard-to-reach places. Perfect for cleaning plumbing pipes, automotive coolant passages, musical instrument mouthpieces, or any cylindrical object. They're durable and reusable. A handy tool for mechanics, plumbers, hobbyists, or any DIY workshop.