These markers provide brilliant colors and sturdy nibs for school and home art projects. They feature a durable bullet tip for fine and broad lines. The inks won t bleed through most papers, and the ventilated cap ensures safety. The markers can withstand 24 hours of cap-off time without drying out. AP certified non-toxic. Conforms to ASTM standards. The 8-color set includes black, blue, brown, green, orange, purple, red and yellow. The 12-color set includes black, blue, brown, gray, green, orange, peach, pink, purple, red, sky blue and yellow. The master pack includes 25 each of black, blue, brown, green, orange, purple, red and ellow colors - for a total of 200 pencils.