Fenrir's Chain is a massive, intricately designed chain with links forged from dark, weathered metal, each link bearing ancient Norse runes that glow faintly with a blue ethereal light. The chain is thick and heavy, with a rough, textured surface showing signs of battle damage and age, yet it remains unbreakable. At its center, a large, wolf-head clasp symbolizes Fenrir, with glowing eyes that seem to follow the viewer, adding a mystical and ominous presence.