This double fold bias tape is already cut and pressed to result in a border that is 11mm wide on front and back. Because it is "bias" cut fabric, it will easily and smoothly fit both straight and curved edges. This is a fast and easy method of finishing raw edges of fabric. Use around necklines, armholes, between cut quilt pieces, etc. This type of bias tape must be stitched on or convert to iron-on by pressing a strip of fusible web to the un-folded back side, allowing you to press in place rather than pinning, prior to stitching. Available in many colors.