i Grip is a Canadian company specialized in the innovative concept of screw studs with a unique design & superior quality. i Grip’s growing reputation is built on its comprehensive range of safe, easy-to-install products that are durable & adapted to various types of vehicles & climatic conditions. * Made from hot-dipped steel to maximize durability * Thermally galvanized with a zinc coating which acts as a shield against corrosion * Tungsten carbide tip is welded to each stud to amplify continuous traction * Simple & easy to install, i Grip studs can be used for more than one season on new or used tires. Article: IGRIP Screw Studs 15mm 150pcs