The Crocodile Machetes are manufactured by Ralph Martindale Company in England. Each knife is individually made by a hand rolling process from high quality carbon steel, which makes the blades strong and durable. The metal is 45-52 on the Rockwell hardness scale. The handles are made of solid beech wood or plastic. Each has a turn-back grip for better gripping power. The actual blade lengths are 18", 22", 24", and 28", with a 5" wood and plastic handle.