Insert the bubble level into the designated slot in the middle of the board. Connect the two boards and snap them into place.
STEP 2
Step Up and Guess the Slope
Step onto the board without looking at your feet and estimate the slope % you're standing on. After making your guess, look down. The number directly between your feet is the actual slope %.
Step 3
Move Around and Repeat
Repeat the above exercise on the Slope Plate until you can consistently and accurately detect the slope percentage.