Consumer concerns may lead to a stronger fight against the manufacturer of a wildly popular tumbler.  The Stanley Quencher cup yielded an impressive revenue stream for the company, with $750 million in sales in 2023.  This sales number is a massive jump from the $75 million in Quencher sales earned in 2022.  Perhaps some of the more enticing features of the tumbler include its spectrum of colors, longevity of desired beverage temperature, and monogram design options.  One of the newest components to the product, as showcased by social media influencers, is the possible presence of lead within the tumbler.