Fusible bonding web, also called Stitch Witchery, is a double-sided hot melt glue adhesive that can bond two non-fusible fabrics together with the aid of a hot iron. 29.5" (75cm) wide. The 109 yard roll is 100 meters long.
To use this paper-backed version, first press it through the paper -- making sure the side with glue is between the paper and the fabric, not the paper and the iron -- then remove the paper, lay the second fabric on top and give it another good press. Depending on your iron and fabric, about 10 seconds is a good rule of thumb. Also note that it's always wise to use a press cloth when working with fusibles.