Trail FX A1530S 4 Inch Oval Straight Stainless Steel With Step Pads. Includes welded end caps. Compatible with the following models: 2015-2022 Ford F-150, 2017-2022 Ford F-250 Super Duty, 2017-2022 Ford F-350 Super Duty, 2017-2022 Ford F-450 Super Duty, 2017-2022 Ford F-550 Super Duty.