This is the long size Historical handmade seax knife, 100% handmade by old way.It also serves as a device for catching and neutralizing and enemy blade… pretty cool!-It has a beautiful 17.5 inch polished Blade with etsching, made of leaf springs from truck/vans/cars. Leaf spring is 5160 high Carbon Steal and Carefully balance tempered (which is one of the most important points)-7 Inches "full tang" handle made of rosewood.-Blade width at the belly is approximately 1.88 inches or (48 Millimeters)-The Blade thickness in spine is between 0.23 inches to 0.27 inches (6 to 7 millimeters)