This is the number 9 inside of a box. There is a line drawn across the top of the box, about a quarter inch from the top. There's two little tabs at the top of the box.
This Calendar 9 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 15,900 icons, all in the same style and quality.