Scotch Brite Bristle material is often a very safe alternative to a wire brush. Moreover, it works quickly and is available in different versions such as a brush, disc or bowl brush. The colour indicates the size of the CubitronII. Look for our stock and article numbers in our webshop. If you want to know more about the Bristle Discs series of 3M, please download the -compete Scotch Brite brochure- on our website : https://www.metaaltechniek.nl/merken/3m.