Iphone 4 black in colour 16GB ?

Selling my iphone 4 due to me upgrading to an iphone 4s. The phone is locked to the three network. The phone is in great condition with no scratch marks. It has been reset to the factory settings and anyone that is interested is welcome to come and have a look at it. I have a three sim card so can show the phone is working fine. Phone or text with any questions. cheers for looking.