used item in good condition
Typically used in online marketplaces or second-hand shops to describe pre-owned goods that are still in good shape.
This used camera in good condition has almost no scratches.
I'm looking for a used smartphone in good condition.
中古品 simply means 'used item' without specifying condition, while 中古良品 explicitly states it is in good condition.
新品 means 'brand new', the opposite of 中古良品.
Compound of 中古 (second-hand) and 良品 (good-quality item).