The COSTUMAKERS Duvet Closed End Zipper in White, 150 cm (60 in), provides a long, lightweight closure tailored for bedding projects where a non‑separating zipper is preferred. With a #3 nylon coil, it balances flexibility and strength so it can curve with the fabric without adding excess bulk along the duvet opening. The extended length suits most twin to king‑size duvet covers and large cushion covers that require an uninterrupted run. To install, mark the opening, stabilise the seam allowance with a light fusible or stay tape, and baste the zipper in place to verify alignment before the final stitch pass. Sew with a zipper foot, keeping the needle close to the coil while ensuring the slider moves smoothly from end to end. The closed‑end design prevents the pull from travelling off the tape during laundering and everyday use. Choose White to coordinate with the shell fabric for a tidy finish that disappears into the seam; pair with matching thread for a blended look or a slightly contrasting tone for subtle definition. Care is simple: follow the textile manufacturer’s instructions and press with a cloth, avoiding direct heat on the nylon coil. This 150 cm (60 in) duvet zipper is a practical staple to keep on hand for new bedding projects and for refreshing existing covers with a reliable, low‑profile closure.