This is the 10276th most frequent Japanese word.
非売品
An item not for sale.
The word "非売品" is used as a noun to indicate that the pin badge is categorized as an item not intended for sale.
このピンバッジは非売品です。
This pin badge is not for sale.
Here, "非売品" describes the item received at the event, emphasizing its exclusivity and unavailability for purchase.
イベント限定の非売品がもらえました。
I received a limited-edition item not for sale at the event.
In this sentence, "非売品" is used to describe a subset of game merchandise specifically produced as non-sale items, often promotional or exclusive.