Just pulled from the KNEX vault, the 3-in-1 Classic Amusement Park Building Set. One of the original KNEX Building Sets, the 3-in-1 Classic Amusement Park replicates everything that KNEX was built around and still stands for; Motorised movement sends the 744 classic KNEX parts and pieces on a ride of a lifetime. Also included in the instructions booklet, is step-by-step instructions for two additional models - a Swing Ride and a Boom Ride. All models can be built one at a time. 3 total building ideas in instructions booklet. Celebrate almost 25 years of KNEX with the 3-in-1 Classic Amusement Park Building Set. Size H35.56, W7.62, D46.99cm. Batteries required: 2 x AA (not included) plus . For ages 9 years and over. WARNING(S): Not suitable for children under 3 years old. Only for domestic use. To be used under the direct supervision of an adult.