Putco's Master Boss Running Boards, the "King" of  truck running boards. Made of 430 stainless steel, with a 4" face, these boards will set your vehicle apart from all the others. Whether you are towing a trailer or working on the ranch, these running boards are the perfect addition for the one ton truck and dually. No exposed bolt heads, twin vinyl strips, and extra large mud flaps are some of the unique features of this board. Cab, box and rear extenders are available separately. All necessary hardware and instructions are included. Traditional Running Boards and Box Boards are sold in pairs for easy ordering. Lifetime Warranty!