The clear acrylic sign holder is product of significant grade acrylic and it has large power and transparency.It will never darken underneath powerful light or Solar and it has great stability.this framed sign holder is great for eating places, trade demonstrates, reception areas, universities, weddings, exhibitions and even more. You https://digitalasset.sfo2.digitaloceanspaces.com/DisplayHolders/Custom-Acrylic-Signs.html