Used these blades when working for a commercial outfitter on the Colorado. These are pretty big blades that give you a lot of purchase (may be a little rough on your body if not conditioned). There were pretty durable but a couple guides I worked with had a couple shark bites in their blades (usually from rigging and derigging). I never saw a blade break but saw a few bent oar shafts. Economical and if you break a blade or bend an oar these are replaceable/detachable. There are nicer stuff out there but not at this price.