This is the 12339th most frequent Russian word.
какого
The word "какого" in Russian translates to "what kind of" or "which" in English, depending on context.
This usage of 'какого' is as a genitive form of the interrogative pronoun 'какой', used to inquire about a quality such as 'color' in relation to the noun 'цвета'.
Какого цвета этот автомобиль?
What color is this car?
Here, 'какого' specifies the quality or type concerning the noun 'уровня'.
Мы хотим узнать, какого уровня подготовки требуется.
We want to know what level of training is required.
In this sentence, 'какого' serves to specify the project in question, being part of the prepositional phrase that modifies the verb 'собрали'.