#3 Invisible Zip 18 Inch (45cm) – Pack of 5 Close-End Concealed Zippers, Woven Tape, 5 Different Shades, Smooth Nylon Coil – Dressmaking, Skirts & Cushion Covers (White & Ivory)

• Pack of 5 close-end invisible zips: #3 (3mm)(teeth width) nylon coil, 18 inch / 45cm ( teeth length) —Extra Tape Included: Overall zip length is usually listed length + approx. 5 cm (normal for sewing in)
• GENEROUS 18" OPENING: The 18-inch (45cm) length is the professional’s choice for large 18x18" or 20x20" cushions and long gown closures. It allows for easy insertion of bulky pillow pads without straining the zipper ends.
• HIGH-STABILITY WOVEN TAPE: Our #3 zips feature premium woven polyester tape, offering far more durability than standard mesh. The woven structure prevents stretching and "snaking" on long seams, ensuring a perfectly straight, professional finish.
• FLAWLESS CONCEALED FINISH: Designed with a high-quality nylon coil that disappears completely into the seam. The slim teardrop slider remains hidden, maintaining the sleek silhouette of your furniture or fashion designs.
• FLAWLESS CONCEALED FINISH: Designed with a high-quality nylon coil that disappears completely into the seam. The slim teardrop slider remains hidden, maintaining the sleek silhouette of your furniture or fashion designs.
• INSTALLATION SUCCESS: For a truly invisible look, use an Invisible Zipper Foot. Pro Tip: Gently press the coils flat with a cool iron before sewing; this allows the needle to stitch closer to the track for a "zero-show" result.
• 5 pcs each pack, 5 different shades.
• Need Something Special? Please message the seller for bulk orders or special requirements

Professional 18" (45cm) Invisible Zips: Extra Length for Extra Quality When working on large-scale sewing projects, the zipper is often the point of failure. Our 18-inch #3 Invisible Zips are engineered to handle the demands of larger surface areas while remaining completely undetected. Whether you are crafting luxury floor cushions or an elegant evening gown, these zippers offer the perfect blend of length, strength, and subtlety. The Power of Woven Tape on Long Seams Longer invisible zips are notoriously difficult to install because the fabric can shift or pucker over the 18-inch run. Our Woven Tape base provides a firm, stable foundation that grips your fabric, preventing the "wavy" effect often seen in cheaper zippers. The result is a crisp, flat, boutique-standard seam every time. Versatile Home & Fashion Applications The #3 gauge coil is slim enough for delicate silks and satins used in bridal wear, yet robust enough for the heavier linens and upholstery fabrics used in high-end interior design. Perfect For: Large Soft Furnishings: The standard for 18" to 20" decorative cushions, bench pads, and floor pillows. Evening & Bridal Wear: Ideal for the long back-closures of gowns, jumpsuits, and formal dresses. Removable Covers: Great for seat pads and headboard covers that require a discreet, long-length opening. Technical Specifications: Length: 18 Inches (approx. 45cm) Zipper Type: #3 Invisible / Concealed (Closed-End) Tape Material: Professional-Grade Woven Polyester Quantity: 5 Zips per pack Maintenance Note: For long-lasting performance, we recommend unzipping the closure fully before inserting or removing heavy cushion pads to avoid unnecessary tension on the bottom stop.