NEW Want to put your K'NEX skills to the test and challenge your friends? The Dueling Racers™ building set will let you do just that! Build two cars at once using 136 pieces, including rods, connectors and genuine K'NEX bricks. For high performance, two motors are included, one for each racer. Each vehicle also has an alternate build model, with instructions included. Start your engines!

Build 2 motorized models at once - 2 Motors included! Contains instructions to build 2 lead models and 2 alternate models Requires 4 “AA” batteries, not included