High quality material durable not easy to damage. We are pursuing user-friendly design concepts and creating designs that match humans! Manufacturered by Ladan. Safe non-toxic does not cause any harm. Service: If you have any problems buying or using the Ladan's product please contact our customer service team. We will respond within 24 hours. We also have many styles in this store please go to the store to find out more. Rich fun toys educational help children flexible operation of the brain.