For our Therapy Singing Bowls, we also offer an optional permanent coating. This extremely thin, crystal-clear surface finish protects the bowl for many years from oxidation, fingerprints, and darkening, making extensive polishing unnecessary. This coating is particularly recommended for singing bowls that are used directly on the skin, need frequent disinfection (e.g., in medical settings), or come into contact with (salt)water. The vibrational properties of the singing bowl remain fully preserved.