Mjolnir is a legendary war hammer with a photorealistic design, featuring a large, block-shaped head made of dark, weathered metal with intricate Norse runes engraved along its surface. The handle is wrapped in aged leather, providing a firm grip, and the hammer's proportions are robust, with a short, thick handle leading to a massive, rectangular head that appears capable of delivering devastating blows. The metal exhibits subtle scratches and dents, indicating its use in numerous battles, while the runes glow faintly with a mystical blue hue, suggesting its divine origin and magical properties.