Snow Peak 3-Piece Titanium Cook Set

"Weighing just 7.1 ounces total, the set includes a large 26-ounce pot, a medium-sized 14-ounce pot, and a 18-ounce frying pan that doubles as a lid." How can a 26-ounce pot plus a 14-ounce pot plus an 18-ounce frying pan weigh just 7.1 ounces total? Just kidding. But I suppose if one wanted to be technically correct, they could say: Weighing just 7.1 ounces total, the set includes a large 26 fl. oz. pot, a medium-sized 14 fl. oz. pot, and an 18 fl. oz. frying pan that doubles as a lid. What might be of more interest though is that, unless I'm misreading, the medium-sized pot is 18 fl. oz. and the frying pan (the lid) is 14 fl. oz. https://snowpeak.com/products/3-piece-titanium-cookset I, or someone else might be more interested in the medium sized pot knowing it's 18 fl. oz. instead of 14 fl. oz.