The Hextech Alternator is a medium-sized, futuristic device with a sleek, metallic body adorned with glowing blue hextech energy lines. Its form is angular and symmetrical, featuring a central core encased in a transparent, glass-like material that pulses with vibrant blue light. The surface is smooth and polished, with intricate engravings of hextech symbols and a series of small, circular vents emitting faint energy trails. The device has a compact, yet elongated shape, with a slightly tapered design towards the ends, giving it a dynamic and high-tech appearance.