Interfacing is a textile used on the unseen or "wrong" side of fabrics to make an area of a garment more rigid, stiffen or add body to fabric, such as the interfacing used in shirt collars. strengthen a certain area of the fabric, for instance where buttonholes will be sewn.
This is a light weight interfacing.
$1 for 0.5m
Sold in 1/2m increments. If you buy more than one unit it will be cut as one continuous length.