18 months & up. Young Brix are soft, flexible bristled blocks in nine different shapes that interlock to almost every side for endless possibilities of creative building. This colorful Brix set features oversized pieces designed for small hands to easily manipulate. From an early age, children can enhance creativity while developing fine and gross motor skills, logic and reason, and hand-eye coordination through open,ended STEM-based play. Included: 36 Young Brix Bristle Blocks and Storage Box.