Wide Horns - spread out the load-bearing area and reduce stress on the oar and lock. Blunt Tip - reducing the chance of a penetrating wound. U-Shaped Opening – extra range of motion allows for feathering of the oar, stand-up rowing, and close-in sculling. Tulip Design – aids returning oar to oarlock. Adjustable – Can be fine-tuned to fit most oar sizes and stop styles. Shank Diameter: 5/8” Shank Length: 4-5/16“ Horn Opening: Adjustable 2” Sold in Pairs or 3-pack Includes two split rings to secure the oar lock to the boat Simply put, the Canyon Oar Lock makes rowing easier. This new design allows the oar to feather throughout a greater range of motion and eases rowing while standing. It also reduces friction and interference with the oar stop. This oarlock will benefit rowers of all levels, from beginners to the most experienced.