Step 1: Measure the clubface. Hold the tee flat against the clubface with the "Measure" side facing you. Align the pointed tip of the tee with the bottom of the clubface. Locate the number on tee measuring grid that aligns with the top of the clubface.

NOTE: the clubface can be measured right side up or upside down -- results are the same.

Step 2: Attach the clip. Turn the tee so the "Clip" side is facing you. Insert the clip in the notch number found in Step 1.

That's it! Insert tee in the ground until the clip stops it at the optimal tee height.