Martins [white] Piping Cord Washable piping cord, available in the following sizes. 3mm, 600 metres per roll. 4mm, 500 metres per roll. 5mm, 350 metres per roll. 6mm, 250 metres per roll. Category: Piping Cord Related products Plastic Piping Cord View product Smooth Piping Cord View product Paper Piping Cord View product Plastic Double Piping Cord View product