1. Made of ABS material, durable. 2. Keep your fingers busy, helping you relieve stress and anxiety, allowing you to focus and relax. 3. Suitable for children over 3 years old 4. It is suitable for children to improve their intelligence and learn to cultivate patience. Help children exercise hand-eye coordination and grasping ability, and exercise the brain's logical thinking ability at the same time. 5. Size: about 7 x 7 x 1cm
