All of this series quality katana are forged using traditional way. Each model can be complete disassembled for full maintenance.Blade using through hardened mono steel,include1095 carbon steel,T10 tool steel,differentially hardened in a clay-tempering/quenched process, all blades have mirror polished and razor-sharp edge,the steel are durable and very suitable for cutting.Twin Pegs through the Handle and Tang for extra strength. If you are looking for full functional shinken/katanas, please view this series. All models can be customized as personal needed.