hot wheels track builder unlimited split loop pack hdx77 en gbTake multiple journeys through a single loop with the Hot Wheels Track Builder Unlimited Split Loop Pack. Kids launch their cars into the loop, then they pick which exit route to take by switching the diverter. Connect additional tracks to continue stunting and racing (additional track pieces sold separately). Hot Wheels Track Builder Unlimited encourages kids to experiment and hone their creative skills as they build and rebuild their track builder