Romans were fastidious about hygiene (NB the baths) and removal of all body hair was part of the grooming process. These bronze tweezers, 2 7/8” (2.84”) long, were used for that purpose. They have a sliding ring which locks the jaws for plucking. The sliding locking ring assures a firm grip. A recent exhibition at Wroxeter in Shropshire, England features over 50 pairs of such tweezers along with other artifacts. A CNN article on the exhibition, illustrating tweezers such as this and their use, is available at CNN. With a certificate of authenticity.