The Cudworth Red, White and Blue Silk Knot Cufflinks Set covers three of the most useful cuff colours in one box, from the quiet white pair through to the red for occasions that call for a little more. Every pair is made from two woven artificial silk knots joined by a flexible cord, compressing through the buttonhole and springing back to hold the cuff closed. All three colours work against white and pale blue shirting with navy or grey tailoring. Materials: Artificial silk.