Intense colors. Low odor ink. Add excitement. Add emphasis. Add color! Use Expo colors to track, schedule and present. For use on whiteboards, glass and most non-porous surfaces. Specially formulated low odor ink. Do not shake. Do not use on cloth. Recap when not in use. If left uncapped for an extended period of time, recap for 24 hours and marker should recover. Store in horizontal position when not in use. Fine tip allows you to mark fine lines on smaller boards. Nontoxic. Made in USA.