Onlineb2c Obsidian Multilayer Tiger Eye Tibetan Buddhist Buddha Prayer Beads Mala Bracelet Necklace Natural gemstone, Black Obsidian with Rainbow Eye 6mm Obsidian Bracelet Necklace, 108 Prayer Bead Great for Mantra chanting, meditation and yoga One size fits most, Elastic String: Can be used as a necklace or a wrap bracelet Pls note the rainbow flash will be shown only under the light, otherwise it's just black beads