Nokian Rotiiva AT Plus All-Season Radial Tire - 275/65R20 126S Nokian Rotiiva AT Plus Stone Ejectors - Keeps main grooves clean preventing "stone drilling" and as a result helps to extend the life of the tire. Severe Service Emblem - Only four-season family of tires that carries the Severe Service Emblem exceeding new government snow condition regulations. Improved durability, stability and mileage Respecting the Environment - Manufacturing Process uses only low aromatic, purified oils in this All-Purpose SUV & Light Truck Radial