It's a universal kind of wood glue (pva), but this stuff sits 'upside-down' so the nozzle never dries out! and with a broad footed top (/bottom?) means it doesn't topple over either.
So it's always at the ready for repairs! And it's refillable too, of course.
Every house should have one!
Re-use, repair, re-cycle, re-fill !!!
50ml.