It is the simplest and most effective way to keep the rubber grips of your lenses and cameras black and shiny as new. Each Cleaner pen can clean up to 30 lenses (reference: Canon EF 17-40mm 1:4 L).
Rather than etching away the oxidised part of the rubber by abrasive or erosive means, it will repair the restore the rubber from oxidation.
Simply applying the cleaner fluid on the rubber, it will quickly become black and shiny.
Buy 2 or more to get free shipping worldwide.