could this be a scam

From the opposite direction;

I listed a set of tires and wheels on Craigslist.

Got an email asking if the "item" was still available.

I Responded; yes the tires and wheels are still available and was there anything else you wanted to know about them.

Got a response stating that they would pay the full asking price for the "item" and that they had contracted with a mover to pick the "item" up. I was to call the mover once I had received the check.

I was suspicious because they keep referring to the wheels as the "item" so I responded that why don't you have the mover bring cash and if the wheels and tires are acceptable they could pay me cash. Never heard from them again.