0.3μm Real 14K White Gold Plating over 925 Sterling Silver  4 Prongs Hold Every Stone Closely and Securely To Avoid Stones Loosening And Allows The Maximum Amount Of Light To Both Enter And Leaves The Stone for Maximum Bling and Shine. Heavy duty European locking closure keeps bracelet securely on your wrist. No worries! Absolutely Stunning Dainty Bracelet.