what species are you planning on getting? you should do lots of research before getting one because they are very fragile and require a lot of care and aren't very cheap to maintain. if you tell me which species I can give you some links to good resources that can help you understand what you need to do to be successful in chameleon keeping
There are a lot of great keepers on this website willing to help. It's the #1 site to visit.
However just posting one little sentence with no information whatsoever isn't going to get you any.
What type are you looking at getting? Done any reading? Can you care for one or this something your parents have to purchase? People need info if you want quality help.