They are cast in one piece including the rigid old style mounting hardware, no swivel pins, no solder joints, no glue. The skulls have a nice weight about them and will last several lifetimes. A matching skull is mounted on a solid nickle plated tie clasp that is 1-3/4 long, a suitable length to work with most tie widths. The item "Matching Silver Human Skull Cuff Links and Tie Bar Set Clasp Clip 492 129" is in sale since Monday, April 8, 2019. This item is in the category "Jewelry & Watches\Men's Jewelry\Cufflinks".The seller is "moonravendesigns" and is located in V8M 1A3. This item can be shipped worldwide.