144 pc mixed bag in sizes of 3ss, 5ss, 8ss, 10ss, 16ss (144) pieces of Swarovski Flat Backs No Hotfix are loose crystal elements that are backed with platinum foiling for extra brilliance and protection. These Flat Backs can be easily applied to a variety of carrier materials using standard one- or two-components glues. Swarovski crystal elements are Made in Austria.