Build K'NEX Hornet Swarm Dueling Coaster, the all-new thrill ride building set that combines motorized roller coaster excitement with exhilarating head-to-head racing. This set includes 1,100+ pieces, including colorful K'NEX parts, motor, sound module, 4 coaster cars and over 32 feet of track. Follow the color-coded instructions to build this exciting dueling roller coaster over 3.5 feet high. Then switch the motor and sound module on to bring the model to life. The motorized chain lift quickly carries opposing cars on separate tracks to the top. As they crest the peak, they trigger the motion-activated sound module which results in coaster sounds & screams. Both cars accelerate through opposing tracks that are full of twists, turns and loops in a race to the finish. Instructions for a second dynamic model are available at www.knex.com. Hornet Swarm Dueling Coaster is appropriate for builders and roller coaster enthusiasts ages 9 & up. Requires 2 "AA" and 3 "AAA" batteries.
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