Pattern-Ease Tracing Material is a non-woven tracing material for altering, duplicating and designing patterns and crafts. Pattern-Ease is made up of 80% Polyester and 20% Rayon. Pattern Ease tracing material is strong and durable and doesn't tear easily. Therefore, the copies can be used multiple times and can last for years. Pattern-Ease can also be machine sewn. Pattern-Ease Tracing Material is a must have item for any sewers toolbox. Get the most out of your original patterns by tracing them onto Pattern-Ease. Patterns can be traced by a pencil, ball point pen or by any other tracing pencil.