IPhone 4 unlocked 16gb .

I have a iphone 4 16gb which is unlocked. It is black and in very good condition. The phone comes with box. It is fully working and i have used it for the past 3 months and had no problems. The reason im selling it is because im getting a s3 on a contarct so theres no need for me to have it. Im not looking for a swap so please dont ask.