Contour Normal Level Control Solution 2-1/2mL by Bayer.
The Bayer Contour® Normal Control Solution is designed to check the accuracy of your glucose meter and test strips. Simply apply a drop of the Contour® glucose control solution to a test strip and run a standard glucose test. Confirm that the test results are within the accepted range printed on the test strip vial. It is advised to test your glucose meter and strips accuracy on a regular basis.