German phrase
Was sind die Höchstmaße für ~?
Meaning
What are the maximum permitted dimensions for ___?
When to use it
Asks how large an item may be. Common when checking luggage restrictions.
Example dialogue
Was sind die Höchstmaße für Handgepäck?
What are the maximum permitted dimensions for hand luggage?
Für Handgepäck sind es in der Regel 55×40×20 Zentimeter.
Hand luggage is generally 55 x 40 x 20 centimetres.