Google has just provided the technical specifications and drawings for the second version of its Google Cardboard virtual reality headset, which debuted at the Google I/O developer conference in May.

Google released specs for the initial version back in December. Now the specs have been updated for the new version, which accommodates 6-inch phones, is easier to assemble than its predecessor, and includes a cardboard button instead of the original magnetic one. Third-party companies can now build new headsets in accord with the new specs — and join the Works with Google Cardboard program.

Find the new specs here (.ZIP).

Google Cardboard v2, given out at the 2015 Google I/O conference in San Francisco.

Above: Google Cardboard v2, given out at the 2015 Google I/O conference in San Francisco.

Image Credit: Jordan Novet/VentureBeat

Google has built up a user base and an app ecosystem by going to market quickly — before other VR headsets, such as Facebook’s Oculus — since introducing Cardboard at I/O in 2014 as a conference giveaway.

Now manufacturers and other interested parties can see what the latest version is made of.

Get more stories like this on TwitterFacebook

Google's innovative search technologies connect millions of people around the world with information every day. Founded in 1998 by Stanford Ph.D. students Larry Page and Sergey Brin, Google ... All Google news »

Track Google's Landscape to stay on top of the industry. Access the entire ecosystem, track innovation & deals. Learn more.