**WHAT IT IS:** * Slendertone Flex Pro Arms Muscle Training System
**WHAT IT DOES:** * Want to know how to tone your arms? Get a full Tricep and Bicep workout for stronger, more toned arms with the Slendertone Arms Muscle Training System. * It activates the biceps (biceps brachii) and triceps (triceps brachii) in the upper arm for a full workout. * Use 20 minutes a day, 5 times a week and in just weeks you will see an improvement in upper arm performance.