DoorSaver 3 Residential door stop (2-Pack). 2 DoorSaver door stops in satin nickel finish. Only one stop needed per door. The DoorSaver 3 design allows you to use your current hinge pin to install this stop and adjust the interlocking cams to set the open limit on your door... then locks in place as you press down. Does not work-up like traditional door stops. The DoorSaver brand is bumper less.... does not touch your door or door trim. The interlocking cam arms press against the hinge plate of the door to stop the door at the point you control. New patented product. Clear instructions on the back of package. Please view the back of package in the photos of this listing to be sure your door hinges meet the requirements for this product.