Compatible to Pandora, Troll, Biagi, Persona, Kay and other European Style Beads and CharmsnRhodium on 925 Sterling Silver (stamped)nEnd cap (non-threaded) size is approximately 3.5mm.nThe ball clasp is approximately 10mm diameternThe bracelet is approximately 3mm thicknThis bracelet can be flexed to fit on your wrist. We also have many different European style bead charms that can fit on this bracelet. We also suggest you check out various stoppers we carry to use them to lock the beads in position on the bracelet.