The most popular oar blade sold by Cataract Oars, the Magnum II features a high-grade urethane body molded around a stiff composite core. This combination lends moderate flex and unparalleled strength to the blade. With 7" of width, it displaces a lot of water. You'll feel it, too, when you surge forward every time you give it a good heave on the river.

Cutthroat:

The long-awaited shallow water drift boat blade from Cataract Oars. The Cutthroat blade's asymmetric profile places more of the blade below the surface in low water conditions. With so much blade submerged, you've got something you can really pull on.