This vintage set is very unique! The cufflinks are sterling silver, with a slide rule on the front, & is great condition! These would be a great gift for an anniversary, birthday, Christmas, wedding, or any other occasion. Note: These do not have moving parts. Size: 1 1/8" x 1/8" Condition: Very Good Mark: Sterling This model cufflink is retired & is no longer in production. All jewelry items come in a gift box. #B363 Vintage Slide Rule Cufflinks. Sterling Silver. Gift For Groomsmen, Groom, Dad, Wedding, Anniversary, Christmas, Birthday, Father’s Day