This is a racing platform for a computrainer as described on their website. It is 3/4" plywood with a linoleum top, with self levelling feet, all the wiring (extended DIN cable, RCA, etc), and a stand to mount the handlebar controller.
It is about 6 feet long, 3 feet wide, and very nicely made. Computrainer bolts right to stand, and all wires are hidden below the deck. It has a tube to mount the handlebar controller, so there are no exposed wires - looks really slick. Since the only thing you need to attach to your bike with this platform is the cadence pickup, putting your bike in or removing it is a 30 second affair.

Super stable.

$50

Computrainer obviously not included at this price.
This is located just South of Boston, and due to it's size and weight, is for pickup only.

Thanks
Ron