Some modern swordsmiths have made high quality reproduction swords using the traditional method, including one Japanese swordsmith who began manufacturing swords in Thailand using traditional methods, and various American and Chinese manufacturers. These however will always be different from Japanese swords made in Japan, as it is illegal to export the tamahagane jewel steel as such without it having been made into value-added products first. Nevertheless, some manufacturers have made differentially tempered swords folded in the traditional method available for relatively little money (often one to three thousand dollars), and differentially tempered, non-folded steel swords for several hundred.[41] Some practicing martial artists prefer modern swords, whether of this type or made in Japan by Japanese craftsmen, because many of them cater to martial arts demonstrations by designing "extra light" swords which can be maneuvered relatively faster for longer periods of time, or swords specifically designed to perform well at cutting practice targets, with thinner blades and either razor-like flat-ground edges or even hollow ground edges.