Kites . . . . . . . available in many colours and shapes.

Solution (By Examveda Team)

When you are speaking of or for yourself, use "am." When you are talking about a person or a thing (in the singular), use "is." When you are talking to a person, and when you are talking about other people or things (in the plural), use "are." Here, it is plural. Hence, are will be used.