Material: 420stainless steel Rotating wheel design, just gently turn the wheel in the middle of golden caneasily switch using the tool, you do not have to use all the tools split out.Tools include fivewrenches, bottle opener, knife, measuring tape, nail file, pry bar, wirestrippers, large and medium flathead screwdriver, glasses screwdriver, mediumand small Phillips screwdriver, spanner bicycle elastic article including avariety of tools. Size: 85mm x 25mm (or 3.3″ x 1.0 “)See photos for details