National 4 In. Oil Rubbed Bronze 1/4 In. Radius Spring Door Hinge Solid Rod Safety chains provide and hold

Safety chains provide and hold a connection between the towing vehicle and trailer in the event of separation of the trailer

Two LR44 long life batteries

application temperature 40 degrees Fahrenheit to 110 degrees Fahrenheit

locks down splinters

electrochemical carbon monoxide sensor

National 4 In. Oil Rubbed Bronze 1/4 In. Radius Spring Door Hinge Solid Rod Safety chains provide and holdCatalog model No. V521 series. Cold rolled steel. Designed for hanging self closing doors in basements, stairways, garages, and entrances. Can be used in residential, commercial, and apartment buildings. Hinge is UL approved for fire doors. Closing speed is adjustable. Fits standard hinge cutout. 1 4' radius, round corner automatic door closing spring hinge.