Feature:1. Logic Thinking: This wooden rattle rolling drum is designed with 4 balls, which can develop your toddler's logical thinking and problem solving skills.2. Hand Eye Coordination: This cylinder rolling drum helps to improve your toddler's hand eye coordination and cultivate their scientific perception ability.3. Safe Material: This wooden rattle roller is made of premium basswood material, without dangerous corners and edges, unpainted on the exterior.4. To Explore and Discover: This wooden rattle rolling toy is designed to encourage your kid to explore and discover independently.5. Parent Kid Interaction: This wooden roller rattle toy motivates parents to play with their toddlers together, enhancing the emotional communication between parents and toddler and enjoy fun.Specification:Item Type: Wooden Rattle Rolling DrumMaterial: Basswood.Package List:1 xWooden Rattle Rolling Drum