Relax! While your little one learns some creative & brain development activity with these silicone stackables. It is non-toxic, BPA free, and safe for kids. Can be used as a teether, stackables and backing mold. Safe for kids - BPA and Latex & Phthalate-free stackables are of non-absorbent, stain-resistant material. Easy to clean! Creative & Problem-solving Activities - With flexible silicone pieces create bridges, tunnels, caves, doll cradles & more! Multi-Usage - Use it as stackables, teether, or simply use it as a backing mold. Boost Motor & Sensory Skills - Stacking, sorting & nesting refines hand-eye coordination! Gifting Option - Exciting kids return gift