The Hillman Group 852133 3-Inch Garage Door Pulley Includes Fork Bolt and Nut, Galvanized Replacement for the stationary or spring pulley on 1-car residential sectional garage doors Package includes instructions, mounting hardware and warning/safety information Steel Material/Mechanical Galvanized Finish WARNING: INCORRECT INSTALLATION OR DOOR POSITION CAN CAUSE SERIOUS INJURY OR DEATH See package warnings and enclosed instructions