Iphone 4, black, 16gb , boxed, charger +

I am selling a black Iphone 4 16gb in fully working order with box and charger. i got this when it came out and have just got the 5, it works fine no problem. currently on 3 so will need unlocking most phone shops do that now. and the back is cracked but you can buy them online for a couple quid. i am after a quick sale so first come first serve. thank you please contact me on 07882091075 if you are intrested NO TIME WASTERS