St Justin, Pewter Convex Trefoil Knot Pendant - 18" Snake Chain The Celts used knotwork to decorate many of their artifacts. To them, the intricate patterns woven into spirals and knots symbolise the continuity of life. Width: 32mm Height: 34mm Chain length: 18 inch (45cm) Supplied in a satin and velvet-lined gift box. Polished pewter openwork pendant on tin-plated snake chain. - Ideal 10th Wedding Anniversary Present