These bangles are vintage circa 1950s. They are fashioned from 14kt yellow gold and do not have a makers mark or gold stamp on them, but they are guaranteed 14kt gold. They feel solid rather than hollow, they are round, very narrow and are made for a small hand and wrist. They measures 2mm wide and 2 1/4 inches across the opening. The condition is very good with no problems. They weigh 24.2 grams.