This acrylic sign holder is 3 1/2 x 2 (W x H) and 1/8 inch thick. The clear case ensures complete visibility and protects note cards from wrinkles and other damage. This acrylic sign holder is the perfect way to make your grid rack display neat and organized. The horizontal sleeve is easy to use and reuse just slide the notice in between the cover and back. This acrylic sign holder can be purchased in a variety of sizes and is also available in a vertical format.