Yaktrax Diamond Grip All-Surface Traction Cleats for Walking on Ice and Snow Durable traction cleats fit over shoes and boots to provide superior traction on snow and ice on all surfaces Patented Diamond Beads are made from case-hardened steel alloy strung on steel aircraft cable; hundreds of biting edges grip in all directions Natural rubber sling remains elastic and secure even in sub-zero temperatures; easy to put on and take off; comfortable for prolonged use Beads swivel independently, preventing buildup of snow and ice making them ideal for transitioning between surfaces like gravel, dirt, and concrete Available in S, M, L, XL, and 2XL to fit most shoes and boots, including insulated footwear