Thin line style dry erase markers feature low odor and bright vivid colors. Use on dry erase boards or glass. Markers wipe away clean and easily. Features a fine tip for a more "pen" style of writing. Markers are AP Certified, non-toxic and conform to ASTM D-4236. Each pack includes 4 markers in assorted colors: Black, Red, Green and Blue. Sold as 12 packs for a total of 48 markers. These fine line, thin style dry erase markers are ideal for learning how to write or for writing in smaller sections like a calendar!. Thin line style dry erase markers feature low odor and bright vivid colors. Dry erase markers can be used on whiteboards or glass. Markers wipe away clean and easily, leaving no streaks. Features a fine tip for a more "pen" style of writing. Markers are AP Certified, non-toxic and conform to ASTM D-4236. Age: 4+ years/Grade PK+