ICEtrekkers Spikes are excellent for navigating icy streets, parking lots and driveways. They can be used with a variety of footwear and fit especially well over dress shoes. They are easy to put on and to take off, and stay on the footwear without the need for buckles or straps. ICEtrekkers Spikes have 6-point contact under the ball and heel of the foot, providing grip even in glare ice conditions. Our spikes are made with tungsten carbide -the same tough steel used in high speed router bits. For added durability, the tungsten carbide tips are encased in an alloy steel housing. This model is great for city use.