The UCD crested tie bar is a strip of folded metal similar in form to kirby grips. It slides over your tie and shirt placket to keep everything in place. The cardinal rule when choosing a tie bar is to ensure that it’s suitable for the width of your tie. Aim for one with a length that’s approximately 70-80% of the necktie’s width. You can go shorter, but definitively not longer.Tie bar placement should always be between the third and fourth button from the top of your shirt