They are especially useful for people who are visually impaired. The download includes a set of 36 example icons that you can try for 14 days. The full package currently contains 244 icons. To access this package, you have to purchase the unlock code.
Registered users can get free updates.
For more information, including on later updates, please read the documentation or visit the home page. Inc. Tucows Inc. has no liability for any content or goods on the Tucows site or the Internet, except as set forth in the terms and conditions and privacy statement.