Prometheus Black Onyx

COLLATERALS' Prometheus collection, boasts the first-of-its-kind patent pending design which showcases an intelligent dual-action fold-able system, creating a unique, functional and innovative fastening cufflink. Made of high-grade Japanese steel and brought to life by one of the most gifted craftsmen machine technicians in this field, the collection offers the only French-cuff fasteners which combine convenience, style and technology in one unique product. Details   High Grade Premium steel AAA Black Onyx gems Prometheus Locking/Folding system Fold-able construction Locking capability Prometheus Mother of Pearl