Where can I find the ring progress bar???

[KarmaEcrivain94]

Everything is in the title
I'm talking about this thing: I've seen it in quite a few apps, but I have no idea how to implement it :'(
Please help me.

 

[George Kounas]

In vs it is available only for windows phone 8.1 applications

 

[mmherz]

Here is a link how to implement it in Windows Phone 8.0 briandunnington.github.io/progressring-wp8.html