Key Features :
i : These fine line, thin style dry erase markers are ideal for learning how to write or for writing in smaller sections like a calendar!ii : Thin line style dry erase markers feature low odor and bright vivid colors.iii : Dry erase markers can be used on whiteboards or glass.iv : Markers wipe away clean and easily, leaving no streaks.v : Features a fine tip for a more "pen" style of writing.vi : Markers are AP Certified, non-toxic and conform to ASTM D-4236.