Micro Chargers Track Expansion Pack A fast crash is about to hit the playroom Cars are on a collision course as they race around the Micro Chargers Crash Zone Track For even more action connect the Jump Track to the Loop Track and Time Track and build the ultimate race track Using quick charge technology, these micro-sized cars take eight seconds to charge and race at scale speeds of up to 600 miles per hour Perfect for kids aged 6+ Requires two AA batteries (not included)