LOS ANGELES (CBS) — Celebrate 7-Eleven’s 85th birthday with a free Slurpee on July 11!

From 11 a.m. to 7 p.m., the convenience store chain is offering free 7.11 ounce Slurpees to customers while supplies last . . . that means once the special cups run out, you are out of luck!

Free Slurpee Day applies to any of the chain’s 70 varieties. Company officials plan to give away about 7 million of the frozen drinks.

To find a 7-Eleven nearby, click here.