JR-69 | JR Arm frames with RP65 Mobility Armpads. 2-way adjustable width/height. Forward-slanting T-arms with ergonomic, maximum-mobility arm top (button-activated arm pad; 1” lateral, 2” forward and back, and diagonal adjustability). Adjustable height range of 4.25”. Adjustable width range of 1.75” each side. 12-year limited warranty on the arm frames and 5-year limited warranty on the arm pads.