Gutermann extra strong thread is a 100 metre long thread thats useful for your sewing and haberdashery craft projectsperfect for bookbinding leathercrafts and heavy fabrics this 100 polyester thread creates secure stitches with high resistancetough and reliable get creative with this high quality thread with vivid shades and strong texture to keep your ideas intact great for tackling heavy duty projects such as canvas linen waxed cotton and other thick surfaces this thread is ideal for