Happy 21st beer day! Your 21st birthday is such a fun birthday to celebrate! Make sure yours or your friends' is the best with this 21st birthday beer glass tankard. This glass mug will be perfect for celebrating a 21st birthday and will be sure to hold all your drinks for the nights to come! This clear glass mug features the words 'It's my 21st beer day' and will be the perfect accessory for the party!