This Zipper Tie features a pre-tied knot that, when worn, will look like a standard necktie. However, a zipper in the tie tail allows the collar to quickly expand and fit over the head without having to tie a knot. These Zipper Ties are available in an 11-inch or 14-inch length for boys ages 2- to 10-years old. For best fit, measure the child from the top of the collar to the waist. 11" Zipper Tie: 2- to 5-years old 14" Zipper Tie: 6- to 10-years old Instructions: The zipper must be released before wearing this tie. To do so, grasp the knot in one hand and, with your other hand, give a slight tug to each side of the neck loop to free the zipper. Repeat if necessary. Do not pull hard, as this may break the zipper. To wear the zipper tie, pull the loop wider (moving the zippered tail up) to fit the tie over the head. Adjust the band under the collar, then pull down on the tail to tighten the tie. Rubbing the zipper with wax paper or candle wax will help keep the zipper tie working easily and smoothly.