Stained Glass Blue Background Amazing Yellow Heart Aluminum Composite Panels11. 7" x 8. 3" (Horizontal) Width, in 11. 69 Height, in 8. 27 Thickness, in 0. 12 Take your designs to the next level with personalized aluminum composite sheets. We'll print them on a 3mm thick panel that will stay put come sunshine or rain. They come in seven sizes, so you can choose the one that fits your needs. All sheets come with pre mounted hanging hardware for easy installation. .: Material: 3mm thick aluminum composite panel .: Seven sizes to