Round Pearl Glass Rings, with Silver color Iron Beads and Tibetan Style Caps, Mixed Color, Rings: about 20mm inner diameter; Round Pearl Glass Beads: about 8mm inner diameter; Spacer Beads: 3mm diameter.Fashion Pearl Glass Rings are perfect for impulse buys at fairs and flea markets, party favors and countertop sales. It can be used as accents in necklace pendant designs as well as worn as rings. Elegant styles and the price is right.