Pair of adjustable office chairs, in good condition in DARLINGHURST, New South Wales for sale

We are refurnishing our office and therefore have a few things to sell off.
These chairs are fully adjustable with lumbar support. The same model is available online for $91.52 each but we're offering the lot of 2 for a total of $30.
Online: http://mlaoffice.com/blue-fabric-deluxe-posture-chair-bl-0070.aspx?MMP=101XXMJPO6E
These are in good, sturdy condition with no marks, although they are a little dusty from lack of use (just brush them down and they'll be as good as new). I have noticed on close inspection that they're not a perfect match - one has a slightly different seat cushion shape to the other. I suspect we bought them at different times, but they're similar enough to make no difference.
Delivery is possible within the local area at an additional cost - feel free to email and ask.
Yes, I do respond to emails!