a rodent barrier device for use on the ground engaging tires of a vehicle . a continuous wall barrier made of a weather resistant and low outer friction slippery material , such as the slippery plastic lexan material , having an upper concave surface rim encircles the tires of the vehicle to be protected from the rodents . initially before made into a continuous wall , the material making up the wall barrier may be a single elongated flat strip that is processed and bent into a continuous tire encircling wall by having the two opposite ends of the strip meet at a common edge .