Contour RollerMouse Red Product Manual page 5

Inserting and Adjusting the Keyboard Risers
2
Fit the end of the riser into the slot on the back of the RollerMouse Red.
Line up the short and long risers
together until you hear them snap into place.
2
RollerMouse Red
2 3
and then press the two parts
2
Negative Tilt
Neutral Elevated
Neutral Flat
3
Positive Tilt
/4