Spikes-Spider 19.399 AP3 Alpine Series Winter Traction Aid - Set of 2 Convenient, clean alternative to snow chains and studded tires Steel track chain design between traction arms provides the most aggressive traction of all Spikes-Spider products, especially in more than 6" of snow Traction arms constructed of permanently elastic, wear-resistant polymer with tungsten carbide studs Traction elements can be installed or removed by anyone in any road condition in minutes For use with FWD, RWD, AWD cars, minivans, small SUVs and small pickups with tire widths of 235 mm or less