Design as a sewing guideline mark tape, ideal for stitching diagonal seams. Functional items - our diagonal seam tape is simply washi tape that is placed on the front plate of your sewing machine to act as a guide while you are sewing diagonal seams. Convenient design - Nice solution for sewing straight diagonal seams without having to mark any lines, a stitch line in red with a seam allowance on either side. How to use - The red line in the center is aligned with the needle of your machine, and the lines on either side are 1/4 inch to each side from the center of the lines, to represent a 1/4 inch seam allowance, simply place the tape with the red line in front of the needle as the stitch line. Easy to remove - the tape removes cleanly, recommend removing or replacing the tape often or after each project to avoid any residue on your machine. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store