The chromed, knurled thumbscrew easily adjusts the tilt angle of the backrest forward or back up to 2" while you are seated The backrest post is notched allowing four easy "snap-in-place" height adjustment positions (approx. 3") The backrest folds completely flat for ease of getting on your motorcycle The contoured backrest pad pivots to match back angle of passenger's back Made in the U.S.A.. BACKREST PASSENGER PLAIN