Brave the elements. When writing has to withstand Mother Nature s wrath Sharpie Extreme Fine Point Permanent Markers rise to the occasion and weather any forecast. Label or customize sports gear camping equipment boating accessories toys water bottles and other items exposed to the elements. Sharpie Extreme permanent markers have extra-durable high-contrast ink that resists fading when exposed to harsh UV rays rain snow or mud. Sharpie Extreme delivers bold color and wide lines and can be used on most surfaces even hard-to-mark plastic glass and wood.