This is an Authentic Made in Murano, Italy Handblown Glass & Sterling Silver Bead Charm. This is the real thing! Marked on the .925 sterling silver core you'll find the words "Murano, Italy" and the ".925" stamp. These are of superior quality, you will be thrilled when you see them in person, these are not the knock off copies that are all over the place these days, these are the real deal! This bead will fit all the popular brands like Pandora, Chamilia, Trollbeads, Biagi, Zable & others. These are 14mm diameter by 11mm wide.