- Hot Wheels Track Builder Systems stunt sets expand the world of play!
- Test the limits of your Hot Wheels vehicles with the super boosted performance of the Track Builder System Power Booster Kit!
- Add insane speed with power boosters when competing with friends! Build up to 4 different races with this versatile set!
- The Power Booster Kit includes 35+ pieces including 2 speed loops and two boosters so you can boost your crash, your loops and head-to-head races!
- The possibilities are endless with open system play!