Trimz 18cm Black Autolock Nylon Zip - 4mm Teeth

This Trimz 18cm black autolock closed-end zip features professional-grade 4mm nylon teeth designed for seamless sewing projects. The autolock slider mechanism keeps the zip securely in position without creeping open, making it ideal for dresses, skirts, trousers, blouses, cushion covers and various craft applications. The smooth, snag-free operation ensures fine nylon teeth glide effortlessly through the slider without catching on fabric. Its lightweight, flexible construction sits flat against garments for a clean, low-profile finish that won't add unwanted bulk. Perfect for both experienced tailors and home sewers, this single-piece zip delivers reliable performance across dressmaking, alteration work, and upholstery projects.