The Flash Grenade is a compact, cylindrical device with a metallic casing that features a matte finish, showing signs of wear and minor scratches from use. The top portion houses a smooth, plastic activation button with a slight indentation for thumb placement, while the base has a grooved texture for better grip. The grenade emits a faint, ominous glow from its seams when armed, indicating its readiness to discharge a blinding flash of light upon detonation. The design is utilitarian yet effective, with no unnecessary embellishments, focusing purely on its function to disorient enemies.