This is leftover binding.
There are strips here from over 60 quilts; a few pieces as short as 5in, several closer to a metre and a lot in between. I can't bring myself to waste them - there must be enough here to bind several lap size quilts! But I need the right quilt; I'm not willing to sacrifice the integrity of one of my designs just for the sake of using it up. Maybe I'll have to design a future quilt with scrap binding in mind?