This Puzzle 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 15,500 icons, all in the same style and quality.
This is a corner puzzle piece -one that would go in the southeast corner of a puzzle. The shape is roughly square. There is a protruding nub on the top. On the left is a space where the protrusion from another piece would fit.