Shine On MKE CanvasMilwaukee's skyline glows brilliantly as the sun sets over the city. High Quality Canvas Each canvas is printed on a 1. 5" archival grade canvas to ensure durability. It is pH neutral and acid free, so it will not yellow over time. Its bright white surface will support vibrant, dazzling colors that are consistent and accurate. Floating Frames The optional floating frames are made of quality wood, offering the canvas print the illusion of floating