Home / Arms / 1RI-587+PU Pad 4D Arm1RI-587+PU Pad 4D Arm Category: Arms Description Spec Sheet DescriptionSpec Sheet: 1RI-587+PU Pad 4D ArmRelated products Arms 1RI-078 BK Fixed Arms 1RI-H639 BK Adjust. Arms 1RI-097-BK 5D Adjustable Arm Arms H-629 S2 PC Adjust.