Stable Yield Rate #5 Double Pointed Teeth Metal Zipper with Excellent Craftsmanship Consistent Quality & Stable Yield Rate The yield rate for this #5 double pointed teeth metal zipper is highly stable. The teeth exhibit excellent consistency and are unlikely to become misaligned during the sewing process, ensuring reliable performance in high-volume production. Applications Mid-to-high-end ladies' garments, dresses, coats, trench coats, and blazers Genuine leather goods,