This Checked 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 15,100 icons, all in the same style and quality.
The icon is shaped like a circle but the top right corner of it doesn't fully connect. At the center of the circle is a check mark. The end of the check mark sticks out the opening in the circle a bit.