Wright's Single Fold Bias Tape is sold by the 3.7m ( yard) package. This single fold bias tape is 13mm or 0.5 inches wide. The term "Single Fold" means each raw edge has been pre-pressed in to give a nice finished edge. (Unlike Double Fold, there is no center pressed fold on this bias tape.) Of course, having been bias cut (diagonal), it lies snug and flat around edges and corners to provide a clean finished edge on your project. If used full width, this bias tape is 13mm (about 1/4" wide). Normally it is stitched along both long edges but with application of fusible tape, it may be ironed on then stitched.
Bias tape is normally used to trim around necklines, armholes, waistbands and other raw edges of garments. It is also used to create Hong Kong seam finishes on garments and attractive trim on pillows, hot pads, towels, and many other projects. It can even be used as ties or lacing on aprons, etc. and even to create casings for elastic or cording. This is a very versatile product!