"Polished pure Titanium perfection and impeccable simplicity help ignite the performance and motivation of those who love a challenge. Dynamic beauty and elegance make Choker Square a reliable partner for its wearer of a luxurious look. Technology: AQUA TITAN X100, MICRO TITANBALL Material: String: Nylon 66. Inner core: Elastomer. Buckle: Pure Titanium. Clasp: Stainless steel."