Conversion from tires to ski help

At the ice fishing show in St. Paul there was a booth that you could basically drive your front tires on to the ski. It had like a cage you drive the tire into and clamped it tight.
Does anybody have their information.
I can’t find anything on the web.

Looking to convert front tire of an atc.

Thanks, Doug

Track N Go ?

http://www.youtube.com/watch?v=XwpKjEa4LYY

Here is the Web Page

Not these.

SnoCobra?

http://snocobra.com/

That is the one,thanks.