Is Kali Linux 2.0 Fully Open Source?

i am wondering is kali linux 2.0 fully open source? What i mean by that what software and parts of kali linux 2.0 is closed-source? In kali linux official documentation (http://docs.kali.org/policy/kali-linux-open-source-policy) it says "Kali Linux’s non-free section contains several tools which are not open source." What are those tools and are they still here in kali linux 2.0?