1986-1987 O Pee Chee complete set of 264 Excellent to Near Mint condition.
In trading cards Near Mint (NM), the most common high grade, allows for tiny flaws like slight off-centering or faint scratches, essentially a card fresh from a pack but not pristine. Mint is almost unattainable in the hobby, so sellers often use Near Mint or grades like Near Mint-Mint (NM-MT) to describe cards.