Opened recently but unused.
Found it was the wrong one for my printer.
T3331 compatible black ink.
Some sites show it compatible with Epson XP-7100 printer, but it is not.
The genuine Epson ink pack shows it as compatible with:
Epson Expression Premium XP530, XP540, XP630, XP635, XP640, XP645 and XP830/XP900