Specs Complexity of assembly: 2 level Assembly time: 1 hour Quantity of parts: wooden kits Materials: High-quality plywood; no glue or cutting required. Model size, l*w*h: 4.5*2.6*2.7 in (115*65*68 mm) Weight of the package: 0.5 lb   Description  * The model kit comes with clear, simple and very detailed instruction with illustrations. * Wood Trick models are made from safe and environmentally friendly wood from all-natural trees without any added toxins or glues. * Even children can play with WoodTrick 3D wooden puzzles, although we recommend parental supervision. * Every Wood Trick model: * enhances creative thinking skills, * promotes critical thinking skills, * develops problem-solving and reasoning skills.