Tungsten studs with a convenient puller for studding winter tires. The studs can be easily fitted to bicycle, motorcycle and car tires. The robust construction guarantees excellent results on slippery roads - low slip, high degree of controllability and minimal chance of skidding. With the help of a puller, the stud is easily installed in the tire. They are of high quality, so they are durable enough to last for more than one season.