The Crocodile Machetes from Ralph Martindale Company in England are made from British steel that are hand rolled in there whole owned manufacturing plant in Thailand. Each knife is individually made by a hand rolling process from high quality British 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.