This CRL Top Pivot Guide has a 7/16 inch (11.1 millimeter) diameter nylon base which is spring loaded with a 7/8 inch (22.2 millimeter) diameter nylon wheel. This guide/pivot fits on bi-fold doors one to 1-3/8 inches (25.4 to 34.9 millimeters) thick and up to 30 pounds (13.6 kilograms) each. It fits on Cox doors. Two guides per package.
