It builds kids' spatial logic & hands-on ability while boosting parent-child interaction. STEM Educational Enlightenment Wonder: It can be assembled and disassembled at will, and the track shape can be flexibly adjusted. Creative Dinosaur Track Set: 237 Pcs set includes 200 flexible tracks, 2 dinosaur racing cars, a race car, 6 dinosaur models, a dinosaur head tunnel, a blue ball, a bridge, 4 bridge lights, 4 road signs, 3 roadblocks, a gate and 2 plastic trees.