This speed controller from Carrera GO is a must-have for any slot car enthusiast. With its sleek black design and precise controls, you'll be able to navigate your car around the track with ease. Rest assured that this controller has been tested and is in excellent working condition. This accessory is compatible with Carrera GO slot cars and was manufactured in China in 2019. It's the perfect addition to your collection and will help you achieve the perfect lap time. Don't miss out on this opportunity to enhance your racing experience.