This 6mm solid 8-plait jute sash cord offers a durable and reliable replacement for worn-out cords. Crafted from strong, natural jute fibre, it's built to last for years, providing a quality solution for your window needs. No.4 (6mm) Solid 8 Plait Jute Sash Cord makes an ideal replacement for worn sash cord. Made from jute (a strong natural fibre) it is durable - sure to be a quality replacement that will last for years to come.