With Laser Cutting Technology, the pieces are easy to remove from the sheet of plywood, the laser cutting is precise and clean no residue smoke burns. The pieces go together smoothly with no glue and with step-by-step visual instructions.
- Wooden locomotive 3D puzzle building kit with mechanical gear and spring wind-up system
- Pop the laser cut pieces out from the wood sheets and slot them together for a glue-free assembly
- Wind-up spring allows the gears and wheels to move and push the locomotive forward on a flat surface
- Beautifully engineered to delight hobbyist as well as perfect example for educating teens on physics
- Perfect for birthdays, stocking stuffers, party favors and holiday gifts for kids and even adults!