A former rehabilitation device, this 5-foot ski-like beam flaps like a set of wings when you shake it, working arm, shoulder and core muscles.
A surprisingly challenging toning and strength workout from the waist up. Your muscles must strain to stabilize the blades' G-forces. Seems easy for the first 10 seconds or so, but becomes more difficult. Superb way to augment regular workouts, and you can use it while watching TV or walking the dog. Useful video workout included.
Five-foot-long model may be too difficult for some; smaller sizes are easier.
