Carrera GO!!! 1:24/1:32 Control Unit lets you customize your DIGITAL 1:24 and DIGITAL 1:32 slot cars for a more istic and thrilling racing experience. This versatile control unit ten different adjustments for speed and braking force, allowing you to tailor your slot cars to your unique driving style. You can even modify the tank capacity to change up the dynamics of your races. Whether you're seeking more excitement or precision, this control unit provides all the options you need to enhance your racing fun. The package includes one control unit, one left end section, and one right end section, making it ready to integrate into your racing setup. Model Number: 20030352