DMC Light Effects embroidery floss is a glistening collection of specialty embroidery threads that will add light and reflective qualities to any needlework or craft project. 8 metre pull-skein of six strand thread. 100% polyester. It is recommended to work with shorter lengths of Light Effects, approx. 12”, to prevent tangling and to avoid fraying. The more the thread is pulled through the fabric, the more “wear and tear” it takes. Shorter thread lengths help to prevent this from occurring. Wash and Care - Washable pieces stitched with Light Effects can be laundered in warm water (not to exceed 105°F) with a mild detergent. Do not use bleach. Wrap in towel to remove excess water, but do not wring. Then lie flat to dry. Do not tumble dry. Iron on low setting.