Perfectly palm sized with elastic to secure the castanet, helping strengthen the hand muscles of children aged 3 and up. Gentle sound: The wooden musical instrument has a felt washer that ensures a gentle sound that is kind to sensitive young ears  Colorful and patterned : Colorful castanets with note patterns are attractive to toddlers  Early development: Allows toddlers to explore rhythm and develop hand-eye coordination while encouraging children to participate in music Sustainable material: Made of high-quality wood that is ultra-strong and durable.  Age recommendation: 3 years and older