Carrera 1/45° Curve for 1:43, GO!!!, and GO!!! Plus Tracks is the addition to expand your Carrera racetracks and create new, thrilling course layouts. This set includes four 45° curves that allow you to build a large 180° corner, two 90° corners, or even an exciting S-bend, giving you endless possibilities to customize your racing experience. Whether you're looking to add complexity or variety to your track, this extension pack the flexibility and fun to design your own unique raceway. Model Number: 20061611