This invention relates to a new marine fender, and relates to a method of assembly a fender. The fender is comprised of four quadrant sections that are conjoined at mating surfaces with tapered wedges inserted into tapered mortises formed at interrelated surfaces. This method of assembly enables an articulated cam action joint which dynamically interacts with kinetic impact energy. Preferably, the components are made from resilient material that is suitable for compression molding, and are approved for use in the marine environment. One preferred embodiment of the invention encircles a single piling. The fender can be positioned to float with changing water levels, and rotate upon impact. The marine fender can be installed on existing isolated and independent marine structures, such as monopiles and dolphins, with little or no modification of the structure.