David Polsonwrote a review of Topeak Alien III Multi Tool on September 23, 2016
Familiarity: I've used it several times
This thing simply has it all. Everything you would need while out for a ride. It has good solid construction. Many of the tools lock in place for added ease of use and safety. It even has a spot hidden away for two spare chain pins. My biggest surprise was that it is actually quite small. I would guess that it's only about 3 inches long by 1.5-2 inches across. It easily fits in my larger saddle bag with a patch kit, extra tire levers, and two spare road tubes. If you find yourself going for long rides on quiet roads, this would be a good investment to keep from getting stranded.