A Turk’s head knot is a decorative knot with a variable number of interwoven strands, forming a closed loop. This type of knot is generally seen made around a cylinder. The knot is used primarily for decoration and occasionally as anti-chafing protection. A notable practical use for the Turk’s head is to mark the “king spoke” of a ship’s wheel; when this spoke is upright the rudder is in a central position. The knot takes its name from a notional resemblance to a turban though a turban is wound rather than interwoven. I think this design is ideal for a wedding band, as it indicates a centering in one’s life. Making a ring like this in metal is much more complicated than just tying it using cord or rope.