#2 Invisible Nylon Zippers are ideal for slacks, blouses, skirts and dresses. This invisible zipper, sometimes referred to as a concealed zipper, features size 2 (3mm) teeth, a 3/4" top/bottom extension, and an automatic lock slider. Lightweight, flexible nylon teeth and polyester tape. Teeth are hidden when zipped. Tooth color matches the zipper. Available in a variety of colors and lengths. Please note: actual colors may vary from picture due to computer setting variances. YKK is a registered trademark of YKK Corporation in Japan and other countries/regions.