Thanks Superchief for your help.
I found my answer on line at BlindsChalet.com...These are the roller shades 1 white and 1 black over each window...mine are located over the door, driver and passenger windows
Controls are located on the left and right end of the shades
Right side=Stopper. The Stopper controls the upper stopping point of shade. to make an adjustment, turn dial clockwise ( right end view) to lower stopping point, turn the opposite way to raise stopping point.
Left side = Tension Tension controls the upward speed.
To make an adjustment, turn dial clockwise (left end view) to increase speed, turn the opposite way to decrease speed.
Hope this will help someone else out adjusting their manual roll shade..