This National Folding Door Guide Roller is the perfect addition to any home improvement project involving doors. With its sturdy construction and folding mechanism, this guide roller is sure to provide a smooth and easy opening and closing experience for your folding door.

The roller is made by National, a trusted brand in the industry. It has a height of 4.6 inches and a width of 2.7 inches, and was manufactured in China. This guide roller is compatible with various types of folding doors and is a must-have for anyone looking to improve the functionality of their doors.