Athletic’s Master Climber has, in addition to a unique design, advanced safety, a magnetic tension system. Ideal for all types of users, from experienced athletes to beginners, providing intense and dynamic training.Our exclusive sweat management system protects critical components to extend the life of the Master Climber. All this range of refined design features makes every workout more comfortable and service quicker and easier than ever. – Athletic’s exclusive Rest Lateral Footrests provide optimal foot support on the stair climber. – No Gap between steps you can use the entire surface of the stair climber step without fear of catching your toes. – The Mater Climber is a great option as it works on both voltages, both 110 and 220 volts. This voltage flexibility prevents errors from plugging equipment into the wrong outlets.