Long-term display of a tachi requires a few specific considerations that differ from shorter swords. Because of the blade's length and curvature, a horizontal wall mount or a dedicated tachi stand that supports the sword at two points — near the habaki and near the tip end of the saya — prevents stress on the saya over time. Always display a tachi edge-downward to match its historical carry orientation and to avoid putting lateral pressure on the saya's interior. For storage in humid climates, a sword bag (katana bag or similar) with a light silica gel pack nearby manages ambient moisture without sealing the blade in a way that traps condensation. Apply a thin coat of choji or mineral oil to the blade every three to six months, wiping off any excess before returning it to the saya. Keep the saya dry and avoid prolonged direct sunlight, which can fade lacquer and dry out wood fittings.