MTALLIC BRUSH: The hand-held wire brush is suitable for cleaning steel parts, machinery, untreated metal parts, cleaning poles, paint stains and special corrosion. It can also be used to clean doors, windows, sliding doors, floor tiles, tubs, sinks, small engine parts and copper pipes, etc., without damaging delicate surfaces. DOUBLE HEAD DESIGN: Brass hand-held wire brush adopts double head design, one is large and the other is small, suitable for different places. The big head has 3 rows of bristles and the small head has 1 row of bristles. Whether big or small stains, the double head toothbrush can clean perfectly. HIGH QUALITY MATERIALS : The metal brushes are made of stainless steel, nylon and brass, which are durable, flexible, easy to clean and have a long life. It is a good helper for your life and work. SPECIFIC OCCASIONS: The brass metal brushes have for specific uses, hard stainless steel bristles: to clean parts that require heavy scrubbing, paint, rust, etc. Curved brass bristles: for cleaning untreated metal parts without damaging the surface or fine features. Soft nylon bristles: for cleaning and refining fine parts such as coffee machines and irons. MTAL BRUSH SET: One set contains 9 stainless steel metal brushes, including stainless steel, nylon and brass brushes. These metal brushes have a handle length of 17cm / 6.7 inch, a large head length of 2.5cm / 0.98 inch, and a small head length of 1.2cm / 0.47 inch. / p>