The horizontal sign holder is 5 1/2 x 3 1/2 (W x H) and made of 1/8 inch thick acrylic. This case helps protect your merchandise information from wrinkles tears and other damage. The horizontal sign holder is clear so the entire message is visible. This sleeve has curved tabs so it easily fits on grid rack displays. The horizontal sign holder is available in various sizes and can also be purchased in a vertical format and they are usable so your presentation is always neat and organized.