From UNOde50, this bracelet features: Each UNOde50 piece is unique. Designed and manufactured at its headquarters in Madrid, all products are handcrafted in Spain. All of our jewelry is made of a special metal alloy. The pieces are then plated with silver or 18k gold. All jewelry is hypoallergenic and nickel free.  Bangle bracelet Silver-tone plated metal Twist bar closure Approx. 2.5" W 1-year warranty Imported.