The Zipper is an amusement ride popular at carnivals and amusement parks in the United States, Canada, Australia and New Zealand. It features strong vertical G-forces, numerous spins, and a noted sense of unpredictability. The ride was invented by Joseph Brown under Chance Rides, a company based in Kansas that has manufactured more than 200 units since the ride's debut in 1968.
Most models of the Zipper follow a similar basic format: A long, rotating, oval boom with a cable around its edge that pulls 12 cars around the ride. Except at peak times, most operators will only fill half of the cars at one time with riders. Like most carnival equipment, the ride is designed to be portable; it can be disassembled onto a truck and transported from site to site.