Google is now selling Google Glass to residents of the United States for the next 24 hours.

The device costs $1,500 (plus tax) and comes bundled with a free sunshade lenses or a prescription lens frame. Google says the number of units available is limited, so you’ll need to act fast to secure yours.

Until now, Google Glass has only been available to a select few via the Glass Explorer Program. To gain access to this program, you either had to attend Google I/O, be referred by a friend, or win a Google competition. But ahead of Glass’s proper public release later this year, Google wants to open it up to a larger audience.

“Over the past several months, we’ve been trying out different ways to expand the Explorer program,” the search giant said in a Google+ post last week. “Every day we get requests from those of you who haven’t found a way into the program yet, and we want your feedback too. So in typical Explorer Program fashion, we’re trying something new.”

Google says all kinds of people with all kinds of occupations are already using Glass — but by opening it up to a larger audience, it can get greater feedback from an even wider variety of users. But as you’d probably expect, supplies are limited — that’s why the promotion will only be available to U.S. residents.

Google hasn’t disclosed exactly how many units it will be offering today, but those keen to get their hands on Glass are advised to place their order sooner rather than later. Don’t be surprised if they’re all gone within the first hour or two.

Good luck getting yours!

• SourceGoogle Glass