10 in. Width, Made Of Extremely Strong Die-Cast Aluminum Alloy, Features Uniquely Designed Rugged Diamond Tread Pattern That Provides A Safe Non-Slip Surface On The Flat Step Area, With Exclusive Multi-Mount System That Is Designed For Precision Fit, Offers XM3 Finish A New Xtreme Mechanical Polished Finish, That Won't Rust, Crack Or Peel And Requires Very Little Maintenance, Easy Installation With Rocker Panel, With Carr's Limited Lifetime Warranty, Made In USA.