Whether at school or office, use these chisel-tip markers in vivid colors from Expo to track, schedule and present your thoughts. These dry erase and low odor markers are perfect to use on whiteboards, glass and most non-porous surfaces. Details: Includes 4 assorted colors Chisel tip Low odor Nontoxic AP certified Conforms to ASTM D-4236Store in horizontal position when not in use Contents: Black Red Blue Green