The Grav Drive is a sophisticated, high-tech propulsion device designed for interstellar travel, featuring a sleek, cylindrical core encased in a metallic housing with glowing blue energy conduits. Its surface is smooth and polished, with intricate circuit-like engravings that pulse with a faint luminescence, indicating active energy flow. The device has a symmetrical design with angular protrusions at each end, housing the gravitational field emitters, and is constructed from advanced alloys that give it a durable yet lightweight feel.