Specs Complexity of assembly: 5 level Assembly time: 6-8 hours Quantity of parts: 678 Materials: High-quality plywood; no glue or cutting required. Model size, l*w*h:   14.96*12.6*14.37 in (380*320*365 mm) Packaging size:  14.37*14.37*1.38 in (365*365*35 mm)  Weight of the package: 2.546 kg (5.61 lb)  Description Like a real roller coaster, this galaxy marble run will give you a lot of positive emotions! Challenge yourself and try to assemble this 3D model faster! Enjoy the construction set and decorate your room! Now you can play with your friends and family, assembling the model together! * The model kit comes with clear, simple and very detailed instruction with illustrations.