Protective and decorative sheath for knot of neck tie has three arms which curl round top and sides of knot to hold cover in place

摘要

The sheath is triangular when seen from the front. Typically it forms an equilateral triangle with sides approximately 5 cm long. It may be made of elastic or springy material and is held in place by arms extending from the sides of the triangle, which curl round onto the rear side of the knot. The sheath may be carved from a lump of metal by milling, filing sawing etc.