These glasses are NOT as large as advertised and are only 300ml (and shorter by 1cm). When I contacted the supplier to point out the discrepancy, I was told they are “only glasses, not precision instruments” and I should have specified I wanted them larger - even though that’s what I chose and paid for on the listing. This would not have been a big deal, but they are being used to create individual gift items and gift boxes were made based on the specifications of the glasses I purchased.