Tie Down Engineering Large Heavy-Duty Plastic Fender (Sold individually) High-impact polyethylene, UV-protected and designed for normal and low profile tires Fits 13 to 15 inch wheels with single or multiple axles Pre-drilled holes at the front and back of fender are 5.639 inches apart Mounting brackets are required for each fender; sold separately 11 3/8 x 45 x 11 inches