noun
not for sale; free item; promotional item
Refers to an item that is not commercially sold, often given away as a free sample, promotional gift, or limited edition bonus. Commonly seen on product labels or in marketing contexts.
このCDは非売品です。
This CD is not for sale.
非売品のポスターをもらった。
I got a promotional poster that is not for sale.
Compound of 非 (hi, 'not') + 売 (bai, 'sell') + 品 (hin, 'goods'). The reading is on'yomi throughout.