These are old steel skeleton keys with a borosilicate glass bead made in the flame of my torch directly on the shaft of the key. The bead color can be custom chosen. It measures 3/4 of an inch in diameter and 8 mm in width. It was made so that it does move on the key. The key measures 2 3/4 inches in length. It can be worn on a chain or ribbon or used as a keychain or decorative object.