144-Piece Bristle Building Set - Offers endless possibilities for creative construction, compatible with other sets to expand model options. Ideal for hands-on STEM and STEAM learning for kids ages 3-8.Safe amp; Kid-Friendly Materials - Crafted with toxin-free, soft-edge bristle tiles to ensure safe play for all ages. Adult supervision recommended for children under 3 to prevent choking hazards.Easy Connection amp; Seamless Building - Frustration-free connectivity allows kids to build intricate designs, boosting fine motor skills, color recognition, and focus.Educational amp; Engaging Play - Enhances hand-eye coordination, counting, sorting, and early interest in STEM concepts through fun, interactive building activities.Safe, Non-Toxic amp; Long-Lasting: Crafted from lead-free, toxin-free materials with soft, rounded edges, these durable blocks provide safe play for toddlers and young kids. Perfect for home or classroom use.