No need to waste your time with measurements or precise placement of glass!
Start on the opposite side of the vehicle from where you prefer to set a glass and install the Sidekick™ base and upper vacuum cups to the vehicle.
When you are ready to set the glass:
Reach across the vehicle, set the glass on the arm of the base vacuum cup, then lower it down on the arm of the upper vacuum cup and proceed to set your side.
You can then walk to the other side of the vehicle, lift the glass off of the Sidekick™, remove the base and upper vacuum cups from the vehicle and lower the glass into place.
Works great from either side and also works on back glasses
