The owners name.
Let us know what Apple product you wish to sell.
Do you have the original box?
Do you know the serial number? You can usually find this information by clicking the (symbol) in the top left had corner of you Mac and choosing the option "About This Mac". You can also find the serial number on the bottom plate of the Mac or on the bottom of the stand on a iMac.
Let us know the best email address where we can send you a offer.
Let us know the best number to contact you on.
Please give as much information as your can about you Apple product. ie, condition, spec, if its boxed, etc.
If you have pictures then this really does help us speed up things.