For best performance, replace worn or missing poles on your Eureka! Timberline Tent with genuine replacement parts. This Replacement Leg Section Pole fits the Eureka! Timberline 4, Timberline 4XT, and Timberline 4 Outfitter. Here is a helpful tip to determine if you need a spanner or a leg section: The spanner is tapered on both ends and goes across the top of the tent connecting through the junction tubes. The leg section is tapered only on one end.