The SASH-1 Sash-Cord or Theater-Cord is used throughout the Film and Theater Industries for securing Drapes, Curtains, Rigging and more. This #8, 1/4 inch black cord is constructed of tightly braided spun polyester that mimics cotton. Sash-Cord has a great feel and incredible knot-tying capabilities. SASH-1 Sash-Cord is an industry standard and an absolute must for every backstage or road crew. Sash-Cord is not recommended for overhead lifting.