A breakdown of the Barbie x Stanley collection rollout from Sept. 16 through Sept. 20, and how to purchase the viral 40-ounce Quencher cups online.

Stanley partnered with Barbie to release eight 40-ounce Quenchers inspired by the doll's 65th anniversary. Here's how to get two new styles that dropped today.

Barbie and Stanley have collaborated in honor of Barbie’s 65th Anniversary with eight new Barbie-themed Stanley Quencher tumblers, but only limited quantities are available. Today’s drop includes the release of the Barbie x Stanley ‘70s Superstar and ‘80s Dynamite 40-ounce Quenchers now available for purchase.