My sons window crank did not work correctly so we could open the window but not close it! After struggling to get it closed before the rain soaked the carpet I realized if I had something to hold onto on the window I could pull as I cranked and the window would shut. Next time I was at the store I saw the command hooks and thought "perfect!!" I got home and immediately placed the hook on the window-now I have a 'hook' to grab onto to help shut the window. Much cheaper then a new window..... [This review was collected as part of a promotion.]