Tension Toner is a super portable workout bar with an adjustable resistance band built right in. Its smart design enhances over 200 exercises safely! How? Tension Toner harnesses dynamic tension and resistance. Now your muscles stay activated throughout every range of movement – burn 160% more calories than a free-weight routine – and yes, we tested it with (EMG) Electromyography technology. Plus you can couple Tension Toner, for even more muscle torching benefits, with resistance bands (included) or enhance your favorite cable machine in the gym too. Tension Toner comes with free lifetime access to online workout routines and an exclusive video library to help you get started. Getting strong, staying lean and feeling great has never been this easy!