This Pin in circle 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 15,600 icons, all in the same style and quality.
This is a basic icon of a push pin, the kind with the plastic part you push on and is easier pulled out. The plastic part looks like an hourglass shape with how it narrows in the middle. The whole push pin is tilted 45 degrees. Around the push pin is a circle.