The 5-in-1 set of mechanical wooden puzzles for small and stylish vehicles for self-assembly. The set includes Hot Rod (61 pieces), Monster Truck (108 pieces), Prerunner (77 pieces), Dragster (92 pieces), and Cross Bike (26 pieces). Eco-friendly sustainable material made of FSC-certified wood. Very high precision with laser-cut plywood with amazing details. All-inclusive boxes, self-assembly. No messy glue is required. Clear colorful step-by-step assembly instructions. Very sturdy construction. Can be painted with thin water-based paints, except the gears, not to obstruct the mechanisms.