The life maxx lmx74 straight pu barbells are perfect for use in commercial environments as they are made of high quality polyurethane and come in the choices between 10 to 40kg in 5kg increments these barbells have a sleek and compact design and would look good in any kind of gym the indication of the weight in kg is displayed on the top bottom and side of the barbells so that it is always super easy to identify which one you are using if you have more than one key features of the life maxx