KNEX 3 in 1 Amusement Park Building Set. Motorised movement sends the 744 classic KNEX parts and pieces on a ride of a lifetime. Three models - Ferris Wheel, Swing Ride and Boom Ride. Set consists of 744 classic KNEX pieces that allow you and your children to create 3 different models (ferris wheel, swing ride and boom ride), one at a time. Ferris wheel stands 87cm tall when built. Turn the motor on and watch your ferris wheel come to life; Operate an amusement park in your very own home; Includes battery powered motor to let your kids see this amusement park set come to life; but which one will you build first; Size H35.56, W46.99, D7.62cm. Batteries required: 2 x AA (not included) plus . For ages 9 year and over. WARNING(S): Not suitable for children under 3 years old. Only for domestic use.