Classpack markers make it economical and convenient to provide students with all the markers they need. Classic, long-lasting, durable Crayola markers lay down brilliant colour and don't bleed through typical paper. Water-based ink doesn't bleed through most paper and can be revived within seconds in warm water if caps are left off. Durable nibs are safely secured in barrels. Versatile tips write at any angle. Extended caps offer safety and identify the colour of the ink. Markers are certified AP nontoxic and conform to ASTM D-4236.