From Wiktionary, the free dictionary
kühlen + Box
Kühlbox f (genitive Kühlbox, plural Kühlboxen)
- coolbox; cooler (insulated bin or box to keep food cold while picnicking or camping)
Declension of Kühlbox [feminine]
- “Kühlbox” in Duden online
- “Kühlbox” in Digitales Wörterbuch der deutschen Sprache