A valuable option available on all of the document holders is what we call a “Window pocket”. In essence your document is protected by a flap while remaining easy accessable to fill-in information. Employees just need to lift the flap to make notations or update graphs… but the rest of the time your documents are protected from dust, water and other harsh elements. This is a great product anywhere, especially in the food industry, outdoor applications and dustry/greasy environments. -- While placing an order first dimension should be the Width followed by the Height.--