Air-drying, non-staining, easy to manipulate material now comes in a red, blue, yellow, and white Classpack. 75 1oz packs give you complete control over the quantity given out in the classroom. Pieces join smoothly. Colors can be blended to create even more colors! Decorate with materials like markers, glitter glue, paint, tin foil, or other components readily available in the classroom. Sturdy, re-usable packaging makes storing & organizing simple. FREE classroom lesson plans included with every Classpack! Includes 21 white 1oz bags and 18, 1oz bags of the following colors: red, blue, and yellow.