Darda Cross Challenge Race Track Playset, Silver/Blue/Black ASSEMBLE AND COMBINE: track pieces effortlessly snap together and combine with existing track sets so anyone can design, create, and customize their own challenging crash course. INCLUDES 2 CARS AND 21-FEET OF TRACK: use the two, 1:64-scale Darda racecars to take on speedy new heights along 21-feet of customizable track. INSPIRES IMAGINATIVE PLAY: excite the mind making new track variations. COMPATIBLE WITH OTHER SMALL RACE CARS: This racing set is compatible with other small toy cars such as hot wheels or matchbox racing cars NO BATTERIES NEEDED: the classic Darda pull-back motor requires no batteries or electricity.