JR39 Arm frames with RP45 Armpads. 2-way adjustable width/height. Forward-slanting T-arms with smooth fore-aft, side-side, and pivoting motion arm caps. Adjustable height range of 4.25”. Adjustable width range of 1.75” each side. 7 year limited warranty on the arm frames and 2 years limited warranty on the arm pads.
