One day after officially unveiling the next big Android update, Android L, Google has made the developer preview available for both the Nexus 5 and Nexus 7 (2013). If you’re unfamiliar with the process, definitely proceed with caution. Basically when you download the factory image, you’ll be flashing the Android L Developer Preview to your device, giving you free reign to test out Google’s brand new mobile OS.

Android L is a big update for Google, and includes something the search giant is calling “material design.” Material design is essentially Google’s attempt to keep a consistent design across all of its mobile devices, as well as desktop and beyond. Google explained that Material Design uses “tactile surfaces, bold graphic design and fluid mooting to create beautiful, intuitive experiences.”

If that’s something you want to get your hands on now instead of waiting for the release later this fall, you can download the factory images. We’ll be getting Android L up and running on a Nexus 7 here pretty soon, and will report back with our findings.