From Icon DataCenter:
A package of 281 popular toolbar icons for Windows 8 is a perfect choice for busy Windows 8 developers. This product includes all the icons you will ever need to create a user interface in accordance with strict Microsoft guidelines. All the icons in this set are available in sizes 16x16, 24x24, 32x32, 48x48 and 256x256 pixels, and in two color formats: 32-bit with alpha channel and 245-colors. File formats include ICO, GIF, BMP and PNG.
Toolbar Icons for Windows 8 are professionally designed and carefully crafted, offering your users a slick, easily recognizable interface. The icons are easy on the eyes, and offers pleasant experience when working with Windows 8 equipped phones for prolonged periods of time.
You can preview all the icons on the webpage and download a demo archive to see the amazing quality of the icons yourself.
Toolbar Icons for Windows 8 are royalty-free. Buy the collection once and use in as many apps as needed without paying extra in licensing fees.
This pack contains 3d bar chart icon, 3d bar chart icon, 3d graph icon, Abort icon, About icon, Access key icon, Account ID icon, Add icon, Address book icon, Ammunition icon, Apply icon, ATM icon, Back icon, Backup archive icon, Bad mark icon, Bar chart icon, Binary data icon, Binoculars icon, Blue pin icon, Book icon, Book icon, Books icon, Boss icon, Calculator icon, Calculator icon, Calendar icon, Calendar Sh icon, Camera icon, Cancel icon, Car icon, Cardfile icon, Cell phone icon, Chart xy icon, Chip icon, Clock icon, Close icon, Close document icon, Closed door icon, Compass icon, Computer icon, Conference icon, Copy icon, Credit cards icon, Credit cards icon, Crystal sphere icon, Customers icon, Cut icon, Cylinder chart icon, Data container icon, Data transmission icon, Database icon, Delete icon, Delete icon, Delivery icon, Demography icon, Disaster icon, Doctor icon, Document icon, Dollar icon etc.
All icons are available at http://www.icondatacenter.com/