He's always got a few tricks up his sleeve, but now you can add a dash of luck and longevity right to his cuffs. The never-ending Celtic knot connotes not only eternity, but the luck of the Irish, as well. Exclusively from RedEnvelope. square sterling-silver cuff links feature a raised design of a traditional Celtic knot background is oxidized for contrast, making them a unique accessory each cuff link measures 5/8"" square