This is a larger, heavier duty version of the Pocket Saw. This saw has a heavier and longer blade (dual .050” diameter instead of .040” and 48” long instead of 24” long). The blade is made of rust resistant stainless steel suitable for cutting wood and bone. The larger rings are much more comfortable to grip than the “thumb rings” of the Pocket Saw. Yet, it still only weighs 1 oz.