Description:- No words can fully describe the satisfaction upon completing a full set!- Engaging, unique and beautiful designs... handmade by YOU!- You will certainly be proud displaying your creation for all of your friends and family to admire! Specification:Material: WoodModel Size (Assembled): 200*255*90mmNumber of Components: 40 piecesAssembly Time (Estimated): 1-2 hoursRecommended Age: 7+ Features:1. Wood Trick Mechanical Models are Wooden Puzzles in 3D. They are made from safe & recyclable birch ply.2. It has been applied the laser cutting and engraving techonology.3. It can be used to train the hand-brain coordination, establish the imagination, understand the relationship between "a part" and "a whole", cultivate patience and logical ability,4. Wood Trick construction sets are 3D puzzles which help to develop creative and spatial thinking, to learn the modelling skills; they contribute to the development of accurate motor activity of the hands. 5. Building one model with the entire family creates a great bonding experience for each family member. Package Included:1 x Wood Windmill Mechanical Model Kit (Unassembled Delivery)