This listing is for 13 used, Type 1, cassettes.
I got these used, but they were stored badly.
9 out of 10 that I have tried have been unusable.
You're only paying P&P so maybe you can use the cases or shells etc for spares...or you might be lucky and the tape might be usable.
Since they're free, absolutely no returns.
Selection will be varied but random, so don't ask for any particular ones.
Buy at your own risk.