Hey there!
howdy partner. a used chair for a 10 bucks eh? 
Yep, it works fine, no signs of wear. It's clean, and is in good condition. What do you say? $10 and I drop it off at your place today in a few hours?
I don't know man, it seems the back is a bit crooked. I have an idea, I'll give you 5 bucks for it, and i'll come and pick it up. you won't have to lift a finger.