The hamon pattern (if any) on the blade is applied by scuffing, etching, or otherwise marking the surface, without any difference in hardness or temper of the edge.[36] The metal used to make low-quality blades is mostly cheap stainless steel, and typically is much harder and more brittle than true katana. Finally, cheap reproduction Japanese swords usually have fancy designs on them since they are just for show. Better-quality reproduction katana typically range from $200 to about $1000 (though some can go easily above two thousand for quality production blades, folded and often traditionally constructed and with a proper polish [37]), and high-quality or custom-made reproductions can go up to $15,000–$50,000.[38] These blades are made to be used for cutting, and are usually heat-treated.