Birch Braided Elastic is a shrink resistant polyester elastic that narrows when stretched. It is ideal for waistbands, sleeves, necklines and legends. It is perfect for wash and wear garments and swimwear and is usually inserted in a casing but can also be stitched directly to fabric. It should be washed in a warm gentle machine wash and be warm tumble dried. Do not bleach, iron or dry clean and avoid direct sunlight. It is sold per pack, which contains one 6mm x 5mm braided elastic.