Home / Accessories / 1RI-BUHA-8-31RI-BUHA-8-3 Category: Accessories Description Spec Sheet DescriptionBack Upright Height Adjustable 8mm with 3” travelRelated products Accessories 1RI-008 Adjustable Headrest Accessories BM-75-Block Accessories SDU-049 BLK PU Seat Accessories 1RI-FD006 – Med.