Just for kids! Safe, non-toxic Super Washable Markers! Set comes with 24 markers. Bright, fun colors for all kinds of art projects. Conical tips allow for coloring with thick strokes or drawing with thin lines. Non-toxic washable ink. For ages 3 and up. Each marker measures 6.4'' long x 0.4'' diameter. Reusable box keeps markers safe and organized. Box measures 5.5'' x 6.5'' high x 1'' deep.