"This liquid plastic can be applied to fabrics and ribbons to prevent fraying and is also excellent for securing serge threads. Designed to dry clear to avoid discoloration, it also dries quickly and leaves fabric soft and flexible. Best of all, Fray Block™ can be machine-washed or dry-cleaned without washing out. Fray Block™ comes ready-to-use with an ultra-fine nozzle-tip which allows for precise application and helps get to hard-to-reach areas. Packaged in a 1-1/2 oz. tube. "