#3 Invisible Zip 20 Inch (51cm) –with Woven Tape for Gowns, Floor Cushions & Upholstery - Professional Hidden Nylon Zips for Dressmaking & Soft Furnishings - 5 Zips (Burgundy)

• Pack of 5 close-end invisible zips: #3 (3mm)(teeth width) nylon coil, 20 inch / 51cm ( teeth length) —Extra Tape Included: Overall zip length is usually listed length + approx. 5 cm (normal for sewing in)
• EXTRA-LONG 20" REACH: The 20-inch (50cm) length is designed for ambitious projects, including full-length dress backs, bridal gowns, and oversized 20" to 24" floor cushions. Provides the wide opening needed for easy access.
• REINFORCED WOVEN TAPE: Unlike standard mesh zippers, our #3 zips utilize a high-density woven polyester tape. This provides the structural "backbone" required for long seams, preventing stretching, puckering, or "zipper snake" across large surface areas.
• FLAWLESS HIDDEN CLOSURE: Engineered with a precision nylon coil that vanishes into the seam line. The elegant teardrop slider moves smoothly and remains discreet, ensuring the focus stays on your fabric, not the fastener.
• PRO-GRADE 5-PIECE MULTIPACK: A convenient set of 5 zippers. Ideal for boutique designers, professional upholsterers, or those creating a full set of coordinated luxury home decor.
• INSTALLATION SUCCESS TIP: For a professional, "zero-show" finish, always use an Invisible Zipper Foot. We recommend gently pressing the coils flat with a cool iron before sewing to allow for the closest possible stitch.
• 5 Zips
• Need Something Special? Please message the seller for bulk orders or special requirements

Professional 20" (50cm) Invisible Zips: Maximum Length, Minimal Visibility When your project scales up, your hardware needs to keep pace. Our 20-inch #3 Invisible Zips are the ultimate choice for large-scale sewing where a bulky standard zipper would ruin the aesthetic. From floor-length evening gowns to oversized continental pillows, these zippers offer the length you need with a professional, "disappearing" finish. The Woven Tape Advantage on Long Runs Installing a 20-inch zipper can be challenging; the longer the seam, the more likely the fabric is to shift. Our Woven Tape is specifically chosen for its dimensional stability. It grips the fabric more effectively than mesh tape, ensuring that your long dress backs or large cushions remain perfectly flat and ripple-free. Strength Meets Elegance Despite its generous length, the #3 gauge nylon coil remains slim and flexible. It follows the drape of long garments beautifully and is strong enough to withstand the tension of large, overstuffed cushions. Perfect For: Large Soft Furnishings: Ideal for 20" to 24" decorative cushions, floor pillows, and bench seating. Formal Wear: The standard length for the back of gowns, jumpsuits, and maxi-dresses. Home Maintenance: Perfect for hidden closures on removable duvet covers and headboard slips. Technical Specifications: Length: 20 Inches (approx. 51cm) Zipper Type: #3 Invisible / Concealed (Closed-End) Tape Material: High-Stability Woven Polyester Quantity: 5 Zippers per pack Maintenance Note: For oversized cushions, we recommend unzipping the closure completely before inserting the pad to protect the bottom stop from excessive lateral pressure.