The cuffs are suitable for arm or leg circumferences of 28 - 45 cm and are used for muscle stimulation of the upper arm and thigh muscles during training. With the Beurer EMS homeSTUDIO you can easily and effectively train your muscles at home through electrical muscle stimulation. Choose between 40 training programs and 20 predefined workouts from the categories "Fitness & Power" or "Relax & Wellbeing" in the associated "beurer EMS HomeStudio" app.