Earrings are available with or without STS post. E-.100RD DetailsThis earring is made from .100" round brass or sterling silver wire. It has an outside diameter of 1". It is available in 1/2”, 1” and 1.5” diameters. Related Items.100RD Seamless Brass Bangle Bracelet .100RD Seamless Sterling Silver Bangle Bracelet