The Celtic knots, also known as endless or mystic knots do not have a beginning or end. Such designs symbolize eternity or timelessness of nature. These lovely Celtic knot cufflinks in vibrant purple and crisp silver are a tribute to those energies. The backs of these unique cufflinks are silver plated brass. Cufflinks measure 1 in. (2.54 cm.) across and 0.90 in. (2.286 cm.) long.