Gutermann Tacking Thread – 200m. Used for basting quilts, tacking and tailors tacks. For hand use only made from 100% cotton. Tacking should be removed prior to washing. Basting is the process of securing two or more layers of fabric or other materials together using long stitches, in preparation for stitching. The beauty of this basting thread by Gutermann is that it can be pulled out afterwards without harming your fabric and it breaks very easily as it is designed to. The Gutermann tacking thread performs best when used with a big eyed long needle.