This Arm Strength Brawn Training Device is the breakthrough fitness sensation that helps you get rid of that flabby problem area under your arms. The secret is the unique dynamic resistance movement that works your biceps, triceps, shoulders, and even your chest all at one time, for amazing results you won't believe. You'll instantly feel your muscles toning and tightening as you burn calories without joint strain. Perfect for all fitness levels. Includes 3 resistance bands.