i phone 4 16gb great condition network 3 ?

hi my iphone 4 16gb on network 3 (but im sure this can be unlocked to any network in a shop) is up for sale due to having an upgrade. this phone is in good condition and comes with two plastic cases one union jack and one clear three leather cases seven screen protectors all the stuff in the box eg>charger ear phones extra computer lead please feel free to ask any questions