This Rewind icon has Android KitKat style. If you use the icons for Android apps, we recommend using our latest Material Icons icon pack (please check our sidebar on the right). Otherwise, it's a solid icon pack that looks good in small resolutions, either on the web or in print. It's characterized by thick lines, smooth corners, and is optimized for 24x24 pixels.
The icon is a rewind or back symbol. It consists of two triangles pointing to the left or backwards. Both triangles touch each other, with the second triangle having its apex obscured or abutted into the first triangle.