NWT Stanley x Barbie Superstar 40 oz Quencher. The hot pink and purple gradient of the Superstar Quencher is all about glitz and glam, With a pattern of gold, dainty stars echoing the sparkle and star-shaped stand of the Superstar BarbieTM doll. This 40 oz tumbler is perfect for keeping your drinks iced for up to 2 days or cold for up to 11 hours. Made from 18/8 recycled stainless steel with double-wall vacuum insulation.