Very Attractive Swan Bead Charm Fits 3mm Snake Chain Charm Bracelets Snake Chain Bracelet for Comparison NOT-included This Swan Bead measures about 5/8 inch (16mm) Round X 7/16 inch (11mm) wide. The hole size is just about 5 mm (3/16 inch) Fine Materials Design and Workmanship Solid 925 Sterling Silver This Cute Bead Charm is crafted from Solid Sterling Silver and oxidized to highlight the details. It measures about 5/8 inch (16mm) Round X 7/16 inch (11mm) wide. The hole size is just about 5 mm (3/16 inch) which makes it compatible with most 3mm Snake chain Charm Bracelets.