The NRS 10 Inch Oar Mounts offer tremendous strength and uncompromising stiffness for years of hard use. Made of hot-forged aluminum for a stronger, lighter, sleeker mount, these oar mounts raise your oar locks up higher for more comfortable rowing when youre sitting on a raised surface. Forging aligns the crystalline structure of the aluminum, creating a stronger oar mount while a tough nylon bushing allows the oarlock shank to rotate friction free. You can easily adjust the oar mounts height by rotating it on the side rail. Molded ridges on the gripping surface increase holding power on NRSs 1 5/8 inch OD frame pipe. A pair of oar mounts includes two U-bolts with nylon lock nuts and four washers and single mounts do not come with hardware.