Watch engineering and creative play combine in this unique build kit from Tamiya’s Robocraft series. The Mechanical Crawling Turtle features a four-leg “crank plate” drive system that translates motor rotation into natural-looking crawling motion. Each pair of legs is molded as a single piece and the front leg plate pivots on a ball joint to replicate turtle movement. Transparent body and leg components let you see the mechanics in action, while a clear reverse switch gives the option to move the model forward or backward. The set includes motor, gearbox, legs, body parts and screws — minimal tools required and no glue needed. Runs on one AAA battery (not included); best suited to smooth, flat surfaces for optimal movement.