This genuine Evil Eye bead is made of Murano Glass and silver core. The bracelet is 3mm sterling silver snake chain; size is 7 1/2 inch but I can prepare it in any size you need, just let me know. Comes with a toggle clasp. It is available as a necklace as well. The Evil Eye also called the invidious eye and the envious eye, is that a person can harm you, your children, your livestock, or your fruit trees, by "looking at them" with envy and praising them. To keep yourself safe from harm, negative energies, emitted by brain, use this amulet symbol either in a necklace or in a bracelet. It is a combination of a jewel and a strong protective symbol. Tradition states that the wearer is protected from envious stares, receives protection from all evil, and receives good luck.