Seams Great is a wispy see through bias knit fabric that curls in half when stretched. It is easily applied to sheer silks as well as heavy woolens and does not add bulk or change flow of fabric.You can do sew much with Seams Great! Uses: Covering seams of fabric that fray - hems - zipper seams - facings - altering knits and knit garments - altering necklines - casings for waistlines, necklines and sleeves - reinforcing curves and armholes - drapery sheers, loose weave drapery fabrics - reinforcement of buttons and button holes on lightweight fabrics - keep needlepoint canvas from raveling - backing for reinforcing rips and mending - repairing wet suits, bathing suits, diving suits and ski clothes.