These are small lots of STAR notes! Each lot consists of one two dollar legal tender star note and a $5 legal tender star note. Both notes will be randomly from 1953 of 1963.
The star designates that each of these were replacements for note the Bureau had an issue printing. They can be more challenging to get than standard notes.
You are buying one $5 and one $2.
/picture is an example of the first lot.