Modeling Dough that can be left out for up to 12 hours without hardening! Washable formula colors can be mixed to make new colors. To refresh dough, mix it with more dough that is not dry. 4 oz. each of 8 colors: blue, green, orange, pink, purple, red, white and yellow, 2 lbs. total. Ages 3 and up. Contains wheat flour (gluten). AP Seal, non-toxic.