When it comes toscreen doors, one of the most important components is the roller. The roller is what allows the door to slide open and closed smoothly. The Slide-Co 11960-B Sliding Screen Door High Tension Spring Roller is a great option for those in need of a new roller. This particular roller is used by Arcadia, Guardian and a variety of other sliding patio door manufacturers. This roller is made out of diecast construction and is designed to hold the top or bottom rails to the side sides together. It also has an adjusting screw heat to help with making any necessary adjustments. The corner legs on this roller are 1-1/8 inches wide and 13/32 inches thick. This roller is a great option for anyone in need of a new one. It is a high-quality roller that is sure to last.It is also a great option for those who have a door that is not sliding as smoothly as it should be.