The icon consists of a rectagle with a right-pointing arrow head centered in it. There are two punch holes and a semicircle connecting them at the top of the rectangle, like a binder.
This Playstore icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,000 icons, all in the same style and quality.