Upon first glance, The Sparrows UNCUFF LINK appears to be a standard pair of cuff links. However, a covert, hidden handcuff key has been engineered in to the design. This concealed hand cuff key will to open almost all Standard Hand cuffs. It’s also designed to hold your French Cuffs closed. A must have for any international SPY or the average citizen looking for some styling cuff links that happen to open Hand cuffs.