The Discoverer Snow Claw is Cooper's Light Truck/ SUV Studdable Winter / Snow tire developed for the drivers of pickup trucks, sport utility vehicles, full-size vans and commercial vehicles looking for dependable wintertime traction over ice and snow covered roads. Molded to accommodate optional metal studs, and developed with durability at the forefront of its design, the Discoverer Snow Claw offers sure footed confidence in harsh winter climates.The Cooper Discoverer Snow Claw utilizes a durable winter compound molded into a symmetric tread pattern focused on reducing gaps between tread elements to enhance clear road handling, notably when carrying heavy loads. Densely siped tread blocks enhance wet and wintertime traction by providing biting edges and flexibility to help the tire adhere with the road surface. The Discoverer Snow Claw leverages Cooper's Snow Grove technology, which employs serrations molded into the zigzag circumferential grooves that bolster snow-to-snow traction for packed and deep snow conditions. Alternating rows of optional metal studs can be inserted into the shoulder and intermediate tread blocks to increase traction on hard packed snow and icy roads. Discoverer Snow Claw tires meet the industry's severe snow service requirements and are branded with the three-peak mountain snowflake (3PMSF) symbol.Install Discoverer Snow Claw tires in sets of four only.Molded to accept optional 12mm (TSMI #13) gold-colored metallic winter studs. Related Information: What is the three-peak mountain snowflake symbol (3PMSF)?