You can easily root all Google Nexus devices running Android 5.0 Lollipop with the ChainFire Auto-Root Tool. You can find the download repository for each device HERE. A total of six Nexus devices can now be rooted using ChainFire’s one click auto-root tool. Android 5.0 compatible CFARs are now available for the Nexus 5, Nexus 7 2012, Nexus 7 2013, Nexus 9, and Nexus 10, amongst others. The only model not compatible is the Nexus 6, but we expect that it will come soon as will all Google Play Edition devices.