1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 View Photos Putco "Boss" Running Board >> BOSS >> NeveRust Stainless Steel. >> Made of 18 gauge 430 mirror finished stainless steel. >> Designed for full sized trucks and duallys. >> Bold 4" rounded face for a tube like look. >> Exposed fasteners are stainless steel. >> Deburred to provide no sharp edges. >> The Dually's Choice in Running Boards.