Design a striking Black Friday promotional graphic with a 16:9 aspect ratio that captures the urgency and excitement of the shopping event. At the center of the graphic, prominently feature the phrase 'BLACK FRIDAY' in a bold sans serif font, utilizing a textured style to give it depth and character. The text should be rendered in a bright white color to ensure it stands out against the dark, grungy background. At the top of the graphic, include the website URL in a smaller size, also in white, ensuring it is easily readable but does not detract from the main message. Below the central text, emphasize 'UP TO 70% OFF' in a bold, outlined style, using a vibrant orange color that pops against the dark background, drawing immediate attention to the discount being offered. At the bottom of the graphic, create a vibrant red banner that highlights 'FREE SHIPPING,' ensuring it is bold and eye-catching. The background should feature a dark, grungy texture that conveys a sense of urgency and excitement, enhancing the overall impact of the promotional message. Below the main text, add placeholder text for product descriptions in a smaller size, ensuring it is legible but does not overshadow the primary promotional elements. The overall composition should be modern and dynamic, with a strong emphasis on the bold typography and vibrant colors, ensuring that the promotional message is clear and compelling to potential customers.