Yes, every marble katana in this collection features full-tang construction. The blade steel extends through the entire length of the tsuka and is secured with one or two bamboo mekugi pins, following traditional Japanese assembly methods. This means the handle is not merely decorative — it is structurally unified with the blade. Full-tang design is widely regarded as the benchmark for quality in collectible Japanese swords because it ensures the fittings remain stable over years of handling, repositioning on display stands, and occasional removal from the saya. You can verify the tang by removing a mekugi pin and carefully sliding the tsuka off, which also allows you to inspect the steel's signature or file marks if present.