Introducing Tamahagane. Tamahagane, the raw material for Japanese swords, is uniquely produced in Japan using the tatara method. It is made by operating for three days and nights using iron sand, charcoal, fire, and water as raw materials. Please take this opportunity to collect this precious Tamahagane. Dimensions: Large: Approximately 1.4 x 2.3 x 2.7 cm Small: Approximately 1.1 x 1.8 x 1.5 cm Weight: 2 pieces, 26.0g Included: - Nittoho Tatara and Tamahagane - Japanese Sword Manufacturing Process - Instruction manual * We do not ship overseas. * Please refrain from purchasing if you are seeking perfection. * Returns are not accepted after receipt.