Abstract: A hollow toroidal member of high-strength material for withstanding mooring loads has a central opening which slips over a mooring pile. A reinforcing ring is preferably secured in the core of the member to provide additional load-bearing capability to the device. A pair of diametrically opposite mooring openings are formed in the member and ring each opening for receiving a boat mooring line, the openings in the member and ring being aligned. The member is preferably molded with its core in fluid isolation from the ambient atmosphere to provide buoyancy. In the alternative, the core is filled with floatation material. A pair of apertured legs may be used in place of the openings in the member for securing the mooring lines thereto.