Grip Studs durable tire studs deliver unbelievable traction, allowing you to operate your machine in the worst conditions. This hefty rubber tire/track stud with its unique wide–auger design installs easily with a cordless drill and stays put like no other screw–in stud. Its solid tungsten carbide shaft has grabbing power guaranteed to help you get the traction you need to finish the job! Grip Studs are easily removed at season's end if desired to add extra service life to the studs, or just leave them in. Grip Studs can damage hard surfaces if not used responsibly. Number of studs per tire vary based on tire size.