These make a unique gift idea for the engineer, architect, or any one who prepares mechanical drawings. Both cufflinks are perfect 45, 45, 90 degree triangles with gradations for measuring things. These are an fashionable complement to blue, white, and many other French cuff shirts and can be worn by both men and women. Each pair is finished by hand to ensure a quality, lasting pair. Cufflinks arrive in high-quality chrome presentation box. Nice lightweight feel works well with French cuff shirts and blouses. Set in rhodium silver frame so it never needs polishing. Covered by Cuff-Daddy's Lifetime product guarantee. Great for wedding parties!