fly·wheelnoun 
flywheels, plural: A heavy revolving wheel in a machine that is used to increase the machine's momentum and thereby provide greater stability or a reserve of available power during interruptions in the delivery of power to the machine.

What does this mean? It means that with this machine, coupled with the amazing professional instructors at Flywheel, you'll be painin' and gainin' in no time! This item gives you a pack of ten classes at Flywheel Studio.