Combine the explosiveness of the BOSU with some HardCORE interval training, and you have FLASH! This 45 minute class is 35 minutes of intense intervals using the BOSU Balance Trainer for cardio conditioning, agility, balance, and core strength. FLASH offers a fantastic cardio-strength combination in a short amount of time. Athletic movements which are built upon strong, solid foundations are introduced slowly and progress in intensity within each training session, making FLASH a favorite for all fitness levels. Get ready to sweat up a storm!