If you're looking for a harder edge to go with your professional wear the skull and crossbones cufflinks and tie-tack set is for you! These square shaped shiny nickel pieces are 0.75" and feature a menacing skull and crossbones on a black background outlined in blood red. The set comes in a beautiful black velvet box that is perfect for storage or presentation. You can also purchase the tie-tack by itself in its own plastic case.