FITMENTFit 9916 Ford F250 F350 F450 F550 Superduty Crew Cab4 Full Size Doors.Please Confirm The Size Before Ordering, The Product Is Not Suitable For Super Cab. MATERIAL Width 6 Inches For Maximum Comfort In Stepping .wide Enough To Feel Sturdy And Safe But Not Too Wide To Look Awkward. Made With Premium Matted Textured Black Coated Steel. Powder Coated with Some Glitter for Rust Prevention While Making Your Running Boards Look More Stylish and Outstanding. EASY TO INSTALL Easy Bolton Installation. No Drilling Or Cutting Required. All Mounting Hardware And Installation Instruction Included. Mount The Mounting Brackets Under The Truck First Then The Running Boards. The Attaching Bolts Fit Into A Groove That Allows Them To Slide To The Proper Spot Then Torque Them Down And Thats It. INNOVATIVE DESIGN This Product Is Newly Designed And Has Obtained A Patent In The Us. Slider Design, Able To Adjust Position On Vehicle Forward Backwards For Better Customization. OE STYLE Oe Style With Polymer Stripes Pattern Aluminum Running Boards, with A Slipresistant Plastic Step Pad.looks Like Very Highquality Material And Similar OEM.