SIMPLE SMOOTH BANGLE CLASP LOCK CLOSURE ONE SIZE FITS MOST 18K WHITE GOLD ALLOY METAL PLZ SEE ALL PICS AS THEY’RE A HUGE PART OF THE DESCRIPTION PLZ NOTE to prolong the life of your pieces always remove before cleaning, washing your hands, taking showers, applying make up/lotion, perfume and sleeping. All pieces require special care and they can last a lifetime