The RockStopper 32x9 Aluminum Tread Plate Trailer Fender - Single Axle Round - One Fender is a heavy-duty, durable fender that is a great fit for your single-axle trailer. This fender is made of 0.056" thick treadplate aluminum, making it strong enough to withstand even the most extreme conditions. It is also rust-resistant, so you can be sure that it will last for years to come. The fender is designed to fit single-axle trailers with tires that are 14"-15" in diameter. It measures 32 inches long, 9 inches wide, and 15 inches high. If you are looking for a durable, rust-resistant fender to protect your trailer, then the RockStopper 32x9 Aluminum Tread Plate Trailer Fender - Single Axle Round - One Fender is the perfect choice for you.