StarSide Antique Brass Metal No Sew Elastic Jeans Collar Button Pant Extender Pack of 6 Stretches with your waist Simple to use, No sewing necessary, Fits just like the regular button. Adds up to 2.5" instantly to your jeans or shirt collar. Easily slips on and off existing waistband or collar buttons Solves the problem of jeans/ shirt collars being too tight.