SINGLES(2) 1/2" Black Oval & Silver Tone Vintage Formal Tux Prom Shirt Stud b245
£27.15
Shirt studs: 0.49" x 0.37" (approx. 1/2" x 3/8" or 12mm x 9mm). collar bar: none. I always try to point out any clear blemishes and condition. Color: silver, black. 0.25" = 1/4" or 6mm - pretty small for standard button holes.