The Wenger SwissBuck Trekker is a retired, pocket-sized 85mm Swiss Army knife with a corkscrew and wood saw. It is part of the SwissBuck series, a collaboration between Wenger and the Buck knife company. Its tools are similar the Backpacker II model, but in a black, ribbed body. It also has a clip point blade instead of a drop point. It was model #87537.