This Crayola 2.5 lb Air-Dry Clay Tub - White comes in a resealable tub. Air dry clay is a fine natural white earth clay which air dries to a hard solid. Use it to make clay sculptures decorative items or plaques. No baking or firing needed! Coil model sculpt embellish paint and carve. Non-toxic. From its earliest beginnings, Crayola has been about color. They came into being when cousins Edwin Binney and C. Harold Smith took over Edwin"s father"s pigment business in 1885. More than 120 years later, color - along with creativity, learning and most of all, fun - is the hallmark of the Crayola company who stands out as the premiere name in crayons, markers and paint for kids.