Responsive Icons. Does that name rings a bell?
I designed these icons out of passion to see how the same icon concept can be presented on 16×16px, 32×32px and 64×64px based grid. Then I realized that they can be implemented to scale gracefully depending on the screen resolution, so the large size can be used for big resolution, the medium for tablet-like resolutions and the small one — well, you guessed it — for mobile. Nevertheless, it's a solid collection of 900 icons, using them in any way that suits you.
Here are the specifications:
— Quantity: 100 icons 3 sizes 3 styles = 900 icons. — Formats: AI, EPS, SVG — Sizes: 16×16px, 32×32px, 64×64px