Can you use a case with carbon fibre ghost armor on the front and back of an iphone?

How much does ghost armor usually cost with a screen protector and will it work with a case? Reviews?

It $30.00 and they make it to work with or without a case and seems to have mostly good reviews.

http://www.ghost-armor.com/

Search engines are a wonderful thing, you should learn to use them. Took me all of 15 seconds to find their website and the answers to all your questions.