Build; Play; And Learn With Cada. With Illustrated Step-By-Step Guidance; Children Can Build The Building Brick Set Together And Then Race Against Each Other. This Process Will Help Children Develop A Sense Of Cooperation And Competition.The Cars Tight And Sturdy Structure Ensures It Will Not Fall Apart Easily In The Event Of A Collision.Made Of High-Quality; Environmentally Friendly Abs Plastic With High Toughness And Full Colour.Remote Control Function; 2.4Ghz Remote Control For Forward; And Backward Moving And Left And Right Turning.The Cars Tight And Sturdy Structure Ensures It Will Not Fall Apart Easily In The Event Of A Collision.