Sleeve links

two bars or buttons linked together, and used to fasten a cuff or wristband.

See also: Sleeve

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Stephen Whittaker, the director of Fellows, the Birmingham fine art auctioneers, said: "Sleeve links are enjoying something of a revival.