This large fire truck 3D construction model is perfect for those who enjoy hands-on building projects. It features a wind-up rubber-band mechanism with key activation, a retractable and rotating fire ladder, rotating front wheels, opening front doors, and retractable truck stoppers for added realism. Ideal for both kids and adults, this highly detailed and realistic representation of a fire truck can be easily painted and decorated to make it unique and personalized. Eco-friendly 3D STEM model to assemble and customize at school or home. Made of sustainable plywood material with very high precision laser-cut details. No messy glue required. Includes clear, colorful step-by-step assembly instructions. Model includes candle wax for gears, sandpaper, and rubber bands (included when relevant). Very sturdy construction. All-inclusive box for self-assembly.Details:Natural woodPackage measures 14.9" x 3.9"Made of plywood materialTotal 439 pieces puzzleWind-up rubber-band mechanism with key activationRetractable and rotating fire ladderRotating front wheelsOpening front doorsRetractable truck stoppersEco-friendly sustainable plywood materialNo glue requiredIncludes candle wax for gears, sandpaper, and rubber bands (when relevant)Clear step-by-step assembly instructionsVery sturdy constructionAll-inclusive box for self-assemblyTotal 439 pieces puzzleRecommended for ages 14 and above