The ContiProContact ContiSeal is Continental's Grand Touring All-Season self-sealing continuing mobility tire designed to instantly seal punctures in the tread area of sporty coupes and sedans. The ContiProContact ContiSeal is designed to blend good looks and handling with low noise and a smooth ride while providing the assurance of continuing mobility in the event of a puncture along with the versatility of all-season traction, even in light snow.ContiProContact ContiSeal tires feature a sticky, viscous coating on the inside of the tire that instantly seals nail or screw punctures of up to five millimeters (approximately 3/16") in diameter that pierce the tire's tread area. The ContiSeal coating is designed to permanently fill the path of the puncture when the object is removed.The ContiProContact ContiSeal features an all-season tread compound molded into a symmetric, notched-rib tread design that provides continuous tread contact with the road to enhance steering response and handling while its wide circumferential grooves promote hydroplaning resistance and wet traction. Continental's PROactive Edge Technology places at least 800 arched edges in each ContiProContact ContiSeal tire's tread design to bring more active edges into the contact patch to promote stormy-weather traction while allowing the pattern elements to transfer smoothly from edge to edge to minimize on-road noise. The tire's internal structure includes twin steel belts reinforced by spirally wrapped nylon to stabilize the tread area promoting uniformity and high-speed durability.