Model: A06445_CHROME Metal Kilt Pin Scottish Thistle Claymore Design Size approx: 3.75'' / 9.5 cm Perfect for all types of events Thistle Claymore Sword Kilt Pin in Chrome. The kilt pin is a piece of jewellery that is usually worn on the lower corner of the outer apron of a kilt. Its function is to prevent the apron falling or blowing open, by securing the outer apron.