CONVENIENTLY SIZED. Measuring 5.5 L X 8.5 W x 0.125 D, this holder is ideal for posting temporary notices for employees, customers, special events, sales, opening/closing hours and more. It firmly attaches to window and door glass for 2-way visibility so you can post different messages for incoming and outgoing traffic. HIGH-QUALITY, DURABLE CONSTRUCTION. Expertly made with clear, acrylic material to supply long-lasting strength and use, this sign holder will protect and display your signs for years to come, keeping them safe from stains, scratches and tears. Although acrylic is lightweight, it boasts great strength, is shatter-resistant. In fact, it won’t break even if it hits the ground! | AdirOffice Sign Holder, 5 x 8, Clear Acrylic, 2/Pack (639-8555-WSH-2) | Quill.