RB20 Running Boards With Mounting Brackets & 2 Pairs of Drop Steps Kit Protective Bedliner Coating 1999-2016 Ford F-250/F-350 Extended Cab Go Rhino Refrigerators & Accessories The diameter of tubes is

The diameter of tubes is 4" with a

No tuning required

0-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability

1/2 Tie Rods

Stud socket included

RB20 Running Boards With Mounting Brackets & 2 Pairs of Drop Steps Kit Protective Bedliner Coating 1999-2016 Ford F-250/F-350 Extended Cab Go Rhino Refrigerators & Accessories The diameter of tubes isGo Rhino's legendary RB20 cab length running boards will make your truck, Jeep or SUV stand apart from the crowd. With an aggressive, yet stylish appearance, these bolt on steps take their visual inspiration from the Ford Raptor but are made for more than just looks. The RB20's perforated holes, punched into the surface of the step, gives maximum traction and prevents mud, ice, and snow from accumulating. The corrosion resistant 16 gauge steel steps