You can use this thin fusible tape (1 inch wide) to attach pieces of batting to each other (butt the two cut pieces together, position the tape on the seam en press into place). The accompanying booklet also gives instructions for finishing table runners, placemats and small quilts without a binding, using this tape.
This tape is also indispensable if you machine quilt in sections. The tape is this, and can easily be sewn trough, both by machine and by hand.
A packet contains two rolls of 30 yard long (27 meters).