Studdable Winter Passenger Car/SUV tire.* Wide and serrated tread channels* Optimized 3D serrated siping pattern* Triangular center tread blocks* Optimized stud pin distribution* M+S Rated* Carries the Three-Peak Mountain Snowflake (3PMSF) symbol* Free lifetime replacement for workmanship and material defects* Enhance snow grip and speeds evacuation of slush and ice* Maximizes tread "bite" on winter road surfaces* Expands tread contact footprint with road surface for superior stability and handling* Maximum performance capability when studded for winter use* Meets the required performance criteria for Use in Severe Snow Conditions