Iphone 4 Black 16 GB Unlocked For Sale !

Hi , i have iphone 4 black 16gb unlocked for sale. its unlocked so any sim can be use in it. its in excellent, mint condition.it comes with all accessories and box.its in fully function order. my location is romford but can meet up in walthamstow if its far for you . plz feel free to ask any more question.thanx