Features: -It encourages DIY track building, cultivating problem-solving, engineering, hands-on skills, etc. -The small car is gravity-driven, requiring no batteries, and uses natural forces to speed around the track. -Made of high-quality plastic and alloy with smooth edges, durable, non-toxic and safe. -Suitable as a wonderful gift for birthdays, Children's Day, Christmas and other festivals. Specifications: Material: plastic+alloy Track: 5M Number of toy cars: 4 Package Included: 1x Track 4x Connectors 8x Suction cups 4x Small cars .
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