The handheld Dynamax Core Trainer is designed to offer an upper-body and core workout with just 5 minutes of use per day, the company says. The Dynamax uses variable resistance to offer lighter or heavier workouts. After pulling the start-up cord, the DynaMax Core Trainer produces up to 200 pounds of resistance and flashes LED lights. The device is compact and portable and weights only 3.5 pounds. Available at www.dynaflexpro.com.
Exercise Product: Dynamax Core Trainer