Dritz Boning provides shape and support to strapless garments such as bustiers, swimwear, theatrical costumes, evening wear, and soft toys. This boning can be sewn on by hand or machine. Features a 5/8'' polyester covering over 1/4'' boning, with a 1/4'' edge to allow for sewing into garment. Details: White 12 yd. boning 5/8'' polyester covering 1/4'' boning 1/4 edge Machine washable, tumble dry, dry cleanable