Gray shirt cufflinks, Pi and square root

Men's cufflinks with Pi and square root, designed for stylish math lovers, engineers, or scientists. Measurements: 15 mm x 15 mm Materials: Glass and brass. They are durable and easy to maintain. They do not rust and the glass cleans with mild soap and water. The decorative mathematical symbol inside the glass is hand-painted, so each piece is unique and slightly different. If you're concerned about the environment, you'll be happy to know that the glass in these cufflinks comes from old buildings in Barcelona. You'll take a little piece of this beautiful and vibrant Spanish city with you. Perfect for people with environmental awareness. Glass and enamel are fused at high temperature to form a solid piece with a fascinating depth effect. The surface of the glass is glossy and not easily scratched. The glass piece has been fixed with industrial epoxy adhesive to a brass base with a dark, shiny metal coating, completely free of stains. The twins are articulated for ease of use. There may be slight variations in sizes and color tones due to manual work.