Everlasto Blue Wrapper and Red Wrapper waxed cotton sash cords are Britain's supreme sash cords. They have a natural cotton cover with a polypropylene core for strength and are waxed for long lasting, weatherpoof durability. They are our most traditional sash cords, still made with using traditional techniques ensuring they remain unrivalled to this day. They are ideal for use primarily with sash windows but can also be used as a pulley line, with clothes airers, as a weatherproof cotton clothes line and in general trade and DIY. Available in various lengths and thicknesses. Made in the UK by James Lever of Bolton, UK manufacturers of sash cords since 1856. Refuse all imitations.