The Innovative Oar Right is a oar stopper with a guide that fits between your oarlock horns and keeps the oar blade in a vertical position. Helps position your oar for the most effective, powerful stoke. Can be used over your oar shaft protection of choice (rope wrap, plastic sleeve, etc.). This Convertible version can flip up and out of the way when you want to be able to feather your oar or locked down for full-power strokes. The Convertible keeps the oar from rotating and being lifting up, allowing the oar to be feathered. Feathering is advantageous if rowing into a wind and reduces the rowing effort. When you drop anchor you want the keeling effect of the Oar Right. Just flip the guide down onto the oar shaft. Price is per pair.