It is a Five Icon Switcher but the only option you have is selecting how many you'd like, so you can have less than 5 or more than 5. All up to you.
From 1 icon to 10, I personally like to keep it at 5 just because it looks not cluttered and clean.
And there we go, 5 icons in the switcher:
Five Icon Switcher is available in the BigBoss repo for free, which was created by chpwn.