Bought  the large clear outdoor command hook yesterday to hang a small wreath outside the window of our door. I followed directions to mount and  hung the wreath.  This morning I discovered  the wreath, with the hook, had fallen.  I then used the extra mounting strip that came with the hook to remount the hood on the window, making sure to clean the surface area again with rubbing alcohol. I waited over an hour before hanging the wreath on the hook. Within an hour of hanging the wreath, the wreath and hook fell again.