Forged D-buckles made of iron were already worn during the Antiquity by Celts and Romans and can be found in both the treasures of the Germanic Iron Age and also at Viking Age archaelogical sites, as well as throughout the Middle Ages and into the Renaissance.
Three size available:
S = for a belt of 1.5 cm
M = for a belt of 2 cm
L = for a belt of 3 cm