The rich black beads are pleasing to the eye and the strand reflects even the slightest bit of light in the darkest of rooms. This doubled strand of sparkling bling will give you a formal feeling while the rubbertipped nipple clips serve as a constant reminder that all are entitled to feeling a little pain with their pleasure.Material: 35% cubic zirconia 35% nickel free metal 15% copper 11% stannum 4% rubberSize: 508 cm