Made of environment-friendly alloy material, processed by exquisite polishing skill. Suited to embellish and hold mens shirt, suit, collar and so on. Suitable occasions: business, ceremony, banquet, so far and so on. An undoubted choice of gift to your father, brother or boyfriend on anniversary, birthday or Valentines Day. Size(L x W): Approx. 3.9 x 3.5cm / 1.57 x 1.37inch. Package Includes:1 Pair Collar Pins. Please allow 1-2mm error due to manual measurement.