M MCIRCO 6 Pcs Glass Measuring Cups with Lids Set, 1-Cup, 2-Cup, 4-Cup Measuring Jugs with Handle, Nesting Liquid Measuring Cups for Kitchen

M MCIRCO, a Chinese brand. https://www.amazon.com/dp/B0BS8ZTQFL

To be fair, they clearly appear that way in the product listing: https://www.amazon.com/dp/B0BS8ZTQFL Moral of the story is "don't buy shitty products from China"