PlayMais® are unique modeling tools for creating whatever you can imagine! Made of cornstarch, food coloring, and water, the brightly-colored foam pieces are all natural and 100% biodegradable. Just dampen them with water and stick them together. No glue necessary! The PlayMais® One sets include the pieces to make specific models, and the PlayMais® Classic Basic sets include an assortment of PlayMais® pieces for free building. The PlayMais® pieces are approximately 1.2” x 0.7” and are easy to cut, reshape, and stick together with minimal mess. Each set also includes a felt sponge for wetting the pieces, a modeling knife, and instructions. These sets are a great introduction to modeling because PlayMais® can be used for basic designs to advanced models. ~Rachel E.