You assemble this construction kit by using the parts according to the supplied 3D construction description, based on step-by-step drawings. You press the parts out of the pre-punched building plates and clamp them together. This creates a sturdy construction for Bouwdervoort. So no glue or the like is required during construction. Only the smallest parts sometimes need a drop of glue to stay firmly attached. Dimensions (l x w x h, in cm.):50x15x18 Number of parts: 137 Difficulty: Medium Construction time: 2- 3 hours All wooden building kits from Kitcreatives are made of better quality FSC-certified wood.