Approximately 3/4" x 1/2" in diameter Rhodium Plated Base Metal Silver and Blue green Enamel Hand Crafted by Artisan in the USA Rhodium Plated Silver Butterfly Backing A lapel pin, also known as an enamel pin, is a small pin worn on clothing, often on the lapel of a jacket, attached to a bag, or displayed on a piece of fabric. Lapel pins can be ornamental or can indicate the wearer's affiliation with an organization or cause. Before the popularity of wearing lapel pins, boutonnières were worn.