These kit knives are actually sold as steak knives. The blades are five inches long and 1/16" thick. It is fairly stout and should work well for removing meat from the leg bones. I am guessing that the steel is either 440A or AUS-6A. Handle materials are black paper micarta and canvas micarta. It is really inexpensive to get knives this way. I probably only have $15 into each one. Granted, they won't hold an edge as long as if I had ground them myself out of ATS-34 or CPM S-30V, but at this price it is a quick and easy way to play with different sizes, shapes and handle materials.