If you were to weigh in at 120 you would be a Jr. Feather weight but be aware those guys weigh in at 122 pounds the weight limit and the next day of the fight can weigh as much as 140 since at the weigh in they are totally dehydrated and only suck down to that weight to make weight at the official weigh in-Good luck!

118-122= Super Bantamweight

Bantamweight

in professional boxing its super bantamweight