1. Material: plastic 2. Applicable objects: children (4-6 years old) 3. Large particles of building blocks, small hands steady grip and good building 4. 180 degrees rotary opening and closing, open and play without constraints, closed for easy moving and storage 5. Can be freely assembled, exercise children thinking ability and hands-on ability 6. Full of colors, solid construction is not easy to fall apart 7. Rounded corners, smooth and burr-free, play without hurting your hands 8. Internal light accessories are powered by button battery
