Prime-Line 1-1/4 in. D X 0.69 in. L Nylon/Steel Roller Assembly 1 pk

This is a unique back patio door roller assembly with a 1-1/4 in. concave nylon ball bearing roller. The stamped steel housing is 11/16 in. wide and 1-3/8 in. tall. It is rear adjusting with a set of tabs or ears that insert into slots in the door's bottom rail. No mounting screws required. It is used by Premiere patio doors.