This is ONE WINDOW  CRANK from a  late 50's  to early 60's  GM car like Pontiac, Buick or Oldsmobile.  Check the design to confirm this is correct for your needs.  #1 has black knob  with an inset cup or bowl, a part number 4151895 and PAT163694 cast into the back of the handle and is more hollow.  #2 has a blue knob that has a small crack at the base of it, a chrome dish insert ,has a part number 4151895 and PAT 163694 cast into the handle back part and is also hollow.  #3  has a blue knob of an older design and has a part number 4151895 and has an open back.  #4 came on 60's cars in the GM line and has a chrome knob. Ihave 4 of this style.  The rest there is only one of.  Chrome is dirty , has some pits and blisters on some of them and needs cleaned on all of them. CHECK THESE DETAILS TO CONFIRM  WHICH ONE YOU NEED.  PLEASE INDICATE WHICH ONE YOU WANT WHEN PURCHASING. Free shipping, usually same day.