P323257 Prym button blanks. Made of white or black plastic, are available in many different sizes between 11 mm and 38 mm.. Illustrated instructions on the rear of the package show how easy it is in four steps. In addition, a cutting template for cutting a circle in the fabric is illustrated. Depending on the textile used, the finished buttons can be washed at up to 60 degrees. Available in bulk packaging with 50 or 100 units for professional needs. 323257 19MM BLACK 4PCS