Roller assemblies are off an old Pella slider door
1 3/8 inch high
2 inches long hard assembly piece and extender goes out the opposite side of the side the adjustment screw is on approx 3/4 on an inch
3/8 to 1/2 of an inch wide Depending where you measure eg along the interior
Case or slider or the exterior Solid casing
And 11/16 of an inch wide from the edges of the tips that stick out from the side of the exterior casing