quels

/kɛl (liaison kɛlz before a vowel)/quel
1.
determinermasculinePlur

which (masculine plural, used before a noun)

what (used before a noun in questions)

Tu as pris quels livres pour les vacances ?

Which books did you take for the holidays?

2.
determinermasculinePlur

what ...! (exclamative use before a noun to express surprise, annoyance, praise, etc.)

Quels idiots, ils ont encore oublié leurs clés !

What idiots — they forgot their keys again!