Tribka Trinkets Ugears Tribiki Self-Propelled 3D Mechanical Wooden Puzzle Kit Diy Set  (4 Pieces)

UGears Tribiki Self-propelled 3D mechanical wooden puzzle KIT DIY set 4 pieces Especially for the little ones, the engineers of the company have developed a 3D-Ugears tribiki puzzle. This model has a design perfectly suited for the development of motor skills of hands, which is very important for the full development of the child. Included is everything you need to build. Model assembled without glue and tools. Model for self-assembly without glue (details ready and easily removed from the board).