This soft, easy-to-use modeling material lets you and your kids create colorful keepsakes. Model Magic air-dries, usually within 24 hours. Once dry it can be colored with paint or markers. It will not crumble or cling to skin or clothing, cleanup is easy and it s non-toxic. The Craft Pack includes two 2-1/2 oz. packs of Model Magic (blue and red), four 1/2 oz. packs of Model Magic (black, green, white and yellow) and a step-by-step instruction booklet.