It's a logo of Zipper Details with a vertical zipper closing from right to left. The zipper handle is vertically down from the zip. The icon is inside a circle with a line coming out on the lower left side of the circle.
This Zipper Slider 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.