This White Opal Color Charm Bead is packed with good quality sparkling crystals This White Opal Color Bead Charm is 1/2 inch and has a 5mm wide opening which could easily fit and slide into a charm bracelet. Compatible with all Popular Brand Name Charm Bracelets Solid Sterling Silver This White Opal Color Bead Fits all other charm systems, the Core is 5 mm in diameter and is Solid Sterling Silver like many others. What makes this a better bead, is that we pack our beads so full of crystals and because this bead has a 2 mm higher dome it glitters so much more.