50yds Rigilene Poly Polyester Boning - Item4ever (3/8", Black) 50 yard per order see through, flat, easy to sew polyester + plastic boning color black This item is marked with the Item4ever brand. Our logo, brand, and slogan are all the intellectual property of our company. This brand is registered with the US Patent and Trademark Office. We are the only authorized distributor of this brand on Amazon.