The COSTUMAKERS general purpose zipper is a lightweight, one-way separating closure for fitted garments and costume work. In Lightmauve at 23 cm (9 in), it uses a smooth nylon coil and standard pull for clean openings on bustiers, halter tops, and costume builds. Baste first to confirm placement, sew with a zipper foot, and keep seam allowances clear of the separating box and pin for smooth starts.