@SINCERELY This 20 inch (50.8cm) doubled strand of sparkling bling will give you a formal feeling while the rubber-tipped nipple clips serve as a constant reminder that all are entitled to feeling a little pain with their pleasure.This product Ingredients 35% cubic zirconia 35% nickel free metal 15% copper 11% stannum 4% rubber.Includes 1 20 inch (50.8cm) black jeweled nipple clips.