Thse fenders are an aluminum smooth flat top "Jeep Style" trailer fender. This style and size fender is commonly used on single axle utility and cargo trailers with 14" to 15" tires. They can be welded on or riveted for use with all kinds of trailer applications, mainly single axle trailers. These fenders, as long as it is installed at the proper location and height, will accommodate most trailer tire sizes from 14 inch to 15 inch trailer tires on most applications. Northbound 16 Gauge aluminum smooth flat top fenders measures 10 inches wide, 36 inches long, and 18 inches high from the ground to the top of the fender. Both sides of this fender are slightly rounded but still present a flat surface, allowing for an easy mounting surface. Northbound fenders are proudly Made In The USA!