Original case for the HP-33S and HP-35S calculators.
Also fits 20S and 17BII. It is a bit long for 12C, but will work if you want a harder case.
Dimensions: 6" x 3.5"
Good Condition Option: May have very light marks.
Acceptable Condition Option: Will have significant markings, pealing, or wear, but remain useable.
Very Good Condition Option: Very Good to Like New condition.