Within the Marvel Universe the heroes are described as being Class X, where X is the number of Tons that the hero can routinely lift. Usually rounded to certain numbers such as 1, 2, 5, 10, etc. With Class 100 being more vague and including any beings of extreme to virtually infinite strength. Below 'Class 1' are the ranks of '1000 lb.' and 'Pinnacle Human' which is loosely defined as 650-800 lb. strength capacity, as well as 'Upper Human Level' for any character weaker than 'Pinnacle Human' but still described as strong in the corresponding publication.