Home / Arms / 1RI-H634 4D Adjust.1RI-H634 4D Adjust. Category: Arms Description Spec Sheet DescriptionSpec Sheet: 1RI-H634 4D Adjustable ArmRelated products Arms 1RI-097-BK 5D Adjustable Arm Arms H-637S S2 Adjust. Arms 1RI-PU Pad 159 Arms 1RI-077