NRS Frame Side Rails with Plugs - PairThe NRS Frame Side Rail with Plugs is a strong and light raft frame component. These side rails pair with the NRS Frame Crossbar with Low Pros to make a rectangular raft frame. Durable aluminum construction means that you'll never see a speck of rust on this frame; it's chemically impossible! These side rails are compatible with all NRS frame accessories, as well as the Light Duty (LD) accessories from Down River Equipment. Mix and match to create