Available in 50', 75', and 100' models from a variety of manufacturers (Spencer being the most notable), logging tapes have some appealing features, as Scott Wadsworth points out. For one, they are not prone to stretching like fiberglass tape measures. And, perhaps best of all, they retract on their own like a traditional tape measure. Wadsworth shares some tips here on when and why to use them. Be sure to watch the race at the end - it might be the most convincing 15 seconds of video ever made.