1. Material: plastic
2. Mode of advancement: inertial
3. The track car is inertia function, gently slide forward twice, it can be fast traveling
4. The track parts are easy to assemble and disassemble, set up double vertical loops, 360 degrees roller coaster effect
5. Exercise children hands-on ability, hand-eye coordination, exercise thinking, develop intelligence, explore science
6. Scientific mechanical structure requirements and stable structure to make it more playable, stable connection will not fall, accompanied by the baby for a long time
7. Track car is a fragile product, please do not violently pushed and instantly press stop, fall from a high place, the above operations will make the car tooth box damage and abnormal sound
8. Weight: 85cm about 550 g, 230cm about 850 g, 440cm about 1620 g
9. Packing list: track x 1, racing x 1 (color random delivery)