This horizontal sign holder is 7 x 5 1/2 (W x H). The case is made of 1/16 inch thick acrylic. The horizontal sign holder is an economical way to protect your grid and slatwall messages from damage and wrinkles. The sleeve is clear so notes are entirely visible and easy to read. This horizontal sign holder can be purchased in a vertical style and in a variety of sizes for an organized neat presentation.