Non-separating (closed-end) zipper Ideal for slacks, skirts and dresses Concealed zipper Automatic lock zipper slider Teeth are hidden when zipped #2 invisible nylon non-separating, closed-end zippers are ideal for use on garments such as pants, blouses, skirts and dresses. This invisible zipper, sometimes referred to as a concealed zipper, features size 2 (2mm) 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.