The Sky-Line Hook is a mechanical grappling device with a sleek, Art Deco design, featuring polished brass and steel components with intricate engravings. Its main body is cylindrical with a curved handle for grip, ending in a sharp, angular hook that glows faintly with a blue bioluminescent light. The surface has a combination of smooth, polished areas and textured grips, with visible gears and pistons that suggest its steampunk functionality.