The twins, collars, cufflinks, cufflinks or cufflinks are pivot pins designed to unite the four cuffs on each sleeve...
The twins, collars, cufflinks, cufflinks or cufflinks are pivot pins designed to unite the four cuffs on each sleeve ending in a shirt. The twins are composed of two parts joined by a small pin to rotate one of the parties to close their fists after entering through the grommets.
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