tire chain and autosock
http://autosockdirect.com/
But I note that users on Amazon gave the AutoSocks favorable reviews...as long as you comply with the under 30 mph restriction and only drive on snow/ice covered roads. Even a short stretch on dry pavement results in them being ruined.
Since it's not always possible to avoid driving for short distances on dry patches of pavement during winter conditions, I'd consider AutoSocks to be an emergency measure only, not a substitute for chains in areas where they are required and/or truly needed.
But first I'd invest in winter tires (not to be confused with all-season tires).



