Outcast Small Oar Lock - Outfit your boat with these strong corrosion resistant brass oar locks and take a spare on your next trip. This is a replacement oar lock for many inflatable pontoons. Shaft diameter is 1/2 inch and the yoke diameter is 1 3/8 inches. Sold per pair. Corrosion resistant brassStrong and stylishIncludes retainer rings1/2" shaft diameter, 1 3/8" yoke diameter