2 Pack, Magnetic Decor Hooks, Magnetic Wreath Hooks Hold Through Glass, Simply Place A Magnet On Each Side Of The Glass, Then Hang The Decoration Or Sign, Can Be Used With Single Pane Windows Or As Single Hooks On Metal Doors, If Used On A Metal Surface, Each Hook Will Hold Up To 35 LBS, Protective Coating Helps Prevent Scratching, Recommended Use For Single Pane Windows Only.