Creative and educational. Made of washable P.E. foam material in different degrees of softness. Both colorful and colorfast, these fun-to-touch tiles are non-toxic and meet international safety standards. Perfect for use in homes, nursery schools, kindergartens and early school grades. Inter-connecting tiles help to develop motor skills while enjoying hours of play. Extends constructive skills. Build a magnificent tent, a magical storage box, a soft and colorful floor and much more. Light, soft and colorful, these tiles will fire the imagination Recommended for all ages. 12 number tiles, 0 - 9, -/+ sign, and = sign. Comes complete with a free clear zippered storage case with handle and webbed backpack straps for easy carrying.