Silver Business Card Case Golf Tennis Fish. Our 925 Sterling Silver Sports Business card cases are available in a variety of designs: Tennis Racket, Golfer and leaping Fish. All our business card cases are manufactured in the UK, are fully hallmarked & presented in a black pouch for protection. The Sports Business card case measures approx. 9 cm x 5.7 cm x 0.6 cm. to fit standard sized business cards. Matching Money Clips & Keyrings are available.