Tacking Tape is a cardboard strip used when folding fabric over to create a nice crisp fold line. Tacking Tape is also used to create an even line on welt cording, sometimes referred to as piping, it is especially helpful when blind stitching a fabric panel next to a welted edge. The Tacking Tape shown here is 1/2 inch wide and sold by the foot. Not sure how to use Tacking Tape, or Tack Strip? You can watch as we demonstrate in our video series How To Reupholster A Wing Chair. The link is below.