The Trelines Ninja Vertical Fly Wheel 10 in is an exhilarating outdoor play accessory for kids aged 5 and up. Featuring a 10-inch wheel, it adds a dynamic element to obstacle courses, allowing kids to propel themselves onto or off the flywheel. The package includes two durable flywheels, designed for easy attachment to existing setups. Size: 34.5 x 26 cm.