Never Get Stuck Again With Tread Ahead™ No more backbreaking shoveling. No expensive tows. Tread Ahead™ gives your tires instant traction by gripping snow and ice below and providing "no-slip tracks" for your tires above. Simply wedge Tread Ahead™ between your tire and the slippery surface and drive off. First time, every time! Made in USA. Comes in two sizes: small for cars (13 1/2"L); and large for SUVs and trucks (23 1/2"L). Works great on:
