Nokian Rotiiva HT All-Season Radial Tire - 235/65R18 110H Respecting the Environment - Manufacturing Process uses only low aromatic, purified oils in this All-Purpose SUV & Light Truck Radial A whole new class of tire for Nokian designed for power and comfort, especially for heavy SUV 4WD vehicles and pickups Center Rib Stabilizer - Improves stability in all driving conditions, especially in powerfull accelerations. The stabilizer ensures that the tread pattern, which provides such good grip, doesnt flex too much. This means that driving stability remains outstanding, even on a dry surface with good grip.