My favorite model is the climber. I think the name is a bit of a misnomer because it is pretty much impossible to open the knife blade with one hand. So if you had to cut rope in an emergency with one hand you die. Aside from that fact it has imho the best basic set of tools. Size versus function that is. The photo of the single complete knife is a climber model. The unopened knives in the first photo are climbers also.