http://www.jamestowndistributors.com/userportal/show_product.do?pid=3743&familyName=Plastic+Trailer+Fenders&history=5wlb8l6i|top_category|categoryName~Trailer%2BParts^page~GRID^categoryId~291%402rxrs8lg|other|refine~1^page~GRID^categoryName~Trailer%2BFenders^categoryId~296
these are plastic