Any cassettes offered for sale are guaranteed to play perfectly.  They are all tested and fully played before being listed.  Usually the cassette case has been replaced with a new one and if there had been any issues with the pressure pad, that has been repaired or replaced.  They are all clean and come from a non-smoking household.

Most of the cassettes are duplicates of ones I already have, which is why they are for sale. 

Thank you for your purchase.