3D Wooden Puzzle Solar Energy Marble Run Toy for Adult children

• This wooden 3D model kit makes by premium basswood plywood. Non-toxic, ECO friendly, with precise and clean Laser Cutting technology it has a smooth edge with no burr, safe to play.
• After assembly, the steel ball can be rolled along the track. These designs are inspired by real-life mechanisms. We believe that building these beautiful working models should be fun. 3D wooden puzzle marble run set help you enjoy a journey of exploring woodcraft construction.
• Exercise logic thinking ability, hands-on ability and concentration. Enjoy amazing details and a wonderful DIY experience. Creating the wooden puzzle model kit is challenging and may take 1-2 hours, depending on your pace and patience.