Expansion Curve Section Set for Mini 4WD Japan Cup Junior Circuit (Blue & Red, 4 pieces each)The Expansion Curve Section Set for Mini 4WD is a must have for any racing enthusiast looking to elevate their track experience. This set includes four blue and four red curve sections, designed specifically for the Japan Cup Junior Circuit. Whether you're a beginner or a seasoned racer, these curves will add excitement and variety to your racing layout. Building your own track can be incredibly rewarding, and this set makes it easy to get started.