There are steel material and plastic material boat trailer mudguards. Steel boat trailer mudguards can be made into single and double axle mudguards. Plastic boat trailer mudguards are specially designed for boat trailer as its inside lips are longer to prevent mud splash on boats. Anti-UV material are used on plastic mudguards so they are last long time even under then sun. Different trailer boat trailer mudguards need different mudguards mounting brackets, which can be supplied together.