Sold out, Sorry. Taylor Taylor See Board Riser Panel 18X36 Sb1836R $0.00 Taylor See Board Riser Panel 18X36 Sb1836RPurchased individually to match the anti-fatigue See Board Helm Cushions; simply stack as many as necessary to achieve the desired height. Vertical adjustment is achieved by simply inserting See Boards panels... $0.00 Sold out, Sorry.