The Schmetz twin needle with a size of 4.0/80 is an excellent choice for sewing parallel seams on various substances. With two parallel needles separated by a fixed distance, this needle creates perfect double seams, which is ideal for finishing hems, making decorative stitching and adding a professional appearance to your sewing projects.

This needle is suitable for use on medium to heavy substances and offers excellent firmness and transit. The size 4.0/80 refers to the thickness of the needle and the recommended dust thickness for which it is most suitable.

Add this Schmetz twin needle to your sewing equipment for accurate and professional results when sewing parallel seams on various substances.