On Tuesday, Google began offering its Google Glass to anyone in the U.S. Previously, you could only purchase one of the $1,500 high-tech specs by receiving an invitation. By Wednesday morning, the entire stock was gone, according to CNET.

On the Glass sign-up page, Google states “We’re out of spots in the Explorer Program for now.” This is followed by a sign-up form, which can be filled out to receive Glass news and be notified if a spot opens up to purchase the wearable device.

If you didn’t order a Google Glass, don’t fret. Another one-day sale is likely to be held in the future. Additionally, a less costly consumer version of Google Glass is expected to launch before the end of the year.

If you’re about to become a Google Glass Explorer, be sure to download the free MyGlass for iOS app before your shipment arrives.

See also: Apple, Google And More Back Anti-Theft ‘Kill-Switch’ For SmartphonesGoogle Unveils The Official iPhone App For Its Helpouts Service, and Android Chief Claims Google Invented Key Features Before Apple.