Traction aids are devices used to increase the grip of a person's feet on a surface. Two examples of traction aids are cleats and bathmats. Cleats are small metal or plastic spikes that are attached to the bottom of shoes to provide extra grip on slippery surfaces. Bathmats are rubber mats that are placed in the bottom of showers and bathtubs to prevent slipping. Both cleats and bathmats are designed to increase the friction between the user's feet and the surface, thus providing more stability and reducing the risk of slipping.