Lightweight polyester sewable boning, 1/2 inch (12mm) wide. Adds firm structure to corsets, bustiers, bridal bodices, lingerie, evening gowns, costume work, and millinery — stiff enough to hold shape, flexible enough to bend with the body for comfortable wear.Sew directly through the boning with a standard machine needle — no casing required, though a casing can be added for a cleaner finish on lined garments. Washes and dry-cleans without losing stiffness.Buy by the yard or by the full roll — your choice. Full rolls offer the best per-yard value for production sewing or stocking your studio.Best uses Bridal bodices, corsets, and bustiers Quinceañera and prom dress structure Lingerie, swimwear, and dancewear Evening gowns and pageant outfits Costume, theatrical, and stage construction Hat brims, fascinators, and millinery Specs Width: 1/2 inch (12mm / 1.2 cm) Material: 100% polyester Weight: Lightweight, sew-through low density Roll length: 45 yards (continuous) Available colors: White, Black Tip: Iron flat before stitching for best results — boning curls slightly when shipped on a roll.