COSTUMAKERS Fashion Closed-End zipper is built for garment sewing and repairs where a neat, reliable closure is required on everyday apparel. It is a closed-end zipper in black with #5 silver Vislon molded teeth and a 15 cm (6 in) length, suited to necklines, pockets, and light jackets. Install with a zipper foot, stitch close to the teeth without catching them, and press seams after sewing to help the zipper sit flat and glide smoothly.