The Wonder of Discovery.The smooth natural wood ring holds three colorful keys with food-grade silicone guards and different textures for a sensory experience. The attached fob has a natural wood top, and features light-up buttons that coordinate with the faces on the keys, so babies know which animal sound they will hear when pressed. Press the Mirari logo to activate a lovable giggle sound. Each key measures 3.6" .OUR MISSION, OUR PROMISEMirari means wonder, and our collection inspires classic play and new discoveries, encouraging children to learn and grow. Mirari promise wonderful experiences, opening a world of possibilities.