This is a Tandem Axle Steel Diamond Plate Trailer Fender. This Dual Axle Fender is made of 14 Gauge Steel. This Fender measures 10 inches wide x 72 inches long x 13 inches tall. If your looking for a Heavy Duty Steel Fender for your tandem axle trailer this is the one for you. Most commonly this style of fender is welded to the trailers frame at several points, or to brackets that are welded to the trailers frame. Both sides of this fender are able to be used as a welding surface.