Hand PEG Clamp Universal Work Holder Vise +4pins Wh01 Used for repairing and engraving jewelry This is a new universal holder Jaws open to 3/4" (19 mm) and close to securely hold items in place The four removable pins accommodate large and small items during engraving or repair Pins measure approximately 1/8" (3 mm) diameter x 1/2" (13 mm) tall