The image is of a mailbox with the door opened. The flag is up on the right side of the box. Part of an envelop is showing inside the box. The back of the envelop is showing the seam where the envelop was sealed.
This Postal icon is a responsive icon. This means that it's optimized for four resolutions, from tiny 16x16 until highly detailed 80x80. The style comes from the latest Microsoft Office
, which makes it perfect for any Windows applications, in particular, those with ribbon toolbar control. Unlike other icon packs that have merely hundreds of icons, this monster icon pack contains 16,000 icons, all in the same style and quality.