Build twice the fun with the gigantic KNEX 6 Foot Double Ferris Wheel. With 2375 colourful parts and standing 6 feet high. The 6-foot double Ferris wheel offers a true builders challenge. Follow the colour-coded instructions to build this towering double Ferris wheel, one piece at a time, for hours of building fun. Then switch on the powerful, plug-in motor and watch the brightly coloured star-shaped wheels spin in opposite directions. The KNEX 6 Foot Double Ferris Wheel includes plug-in motor with AC adapter. Recommended for builders aged 9 years and above.