Nowe, sealed? The phrase "New Sealed" commonly translates to "Nowy, zaplombowany" or "Nowy, w oryginalnym opakowaniu" depending. Since it's a product description for a gaming-collectables marketplace, "New Sealed" should be translated as "Nowy, zaplombowany" or "Nowy, zaplombowany w oryginalnym opakowaniu". I'll choose concise: "Nowy, zaplombowany". Maintain line breaks; there's just one line. Provide: New Sealed -> Nowy, zaplombowany.