The Black Square cufflinks are a set of ultra-classic silver cufflinks with a piece of black Mpingo wood cased in the silver.
The cufflinks have a mechanic on the back that can be tilted upwards and is spring strained to make the spring stay in either closed or open. This feature ensures that the cufflinks will easily slide through the buttonholes on the shirt cuffs. The cufflinks work just as well on single shirt cuffs as well as double shirt cuffs. Take a look at this video to see how to put them on.