The COSTUMAKERS General Purpose Closed End Zipper, Style 1700 in Topaz balances elegant design with reliable performance for garment crafting. This 35 cm (14 in) closed-end zipper features a precision #2.5 nylon coil woven into a matching polyester tape to deliver superior tensile strength and a smooth, low-profile glide through repeated cycles of wear, laundering, and pressing. The nickel-free, corrosion-resistant slider ensures hassle-free operation without snagging. Each coil undergoes solution-dyeing for consistent, fade-resistant colour across production lots. All materials comply with CPSIA lead-safety standards and are tensile-tested beyond 20 newtons to secure durability in both children's and adult apparel. Installation is seamless with any standard zipper foot, allowing the tape to lie flat within seam allowances for a polished silhouette and resisting distortion under steam or mechanical stress. Individually sleeved for moisture and abrasion protection during transit and storage, the topaz zipper is perfect for formal, bridal, couture, and everyday wear requiring a dependable, discreet closure.