This 216 ultra-soft heavy weight interfacing is perfect for adding strength and structure to small parts of garments made from light to heavy weight fabrics such as wool and silk. It adheres easily with an iron-on method, using a moderate to hot iron and a damp cloth. Apply firm pressure bit by bit for around 12 seconds for a secure bond. We recommend performing application tests before processing the product . This interfacing is machine washable at 40°C and dry cleanable, ensuring durability and ease of care.