No returns or For sale is a pair of Columbus EL (extra light) double tapered seat stays. The O.D.'s are 10.4/14/11mm with a .9mm wall. Columbus added Niobium to the steel to raise strength and control grain growth. A full frame made from EL was lighter and stronger than Reynolds 753. These stays are 550mm long. We assume no liability if these tubes are modified, brazed or welded on. refunds.