Olympia Portable Snow and Ice Shoe Grips Cleats for Walking on Snow and Ice provide aggressive traction to reduce the risk of falls and increase safety when walking on snow and ice. Cleats stretch to fit onto any shoe or boot, for anti-slip protection anytime, anywhere. Multi-directional heat-treated steel traction plates on the heel and forefoot easily bite into wintry surfaces, providing 360 degrees of traction for everyday activities like walking the dog and shoveling the driveway. Built to stand up to hard use, the thermoplastic elastomer shoe binding is tested to remain flexible in frigid temperatures, down to -45 degrees Fahrenheit. The Olympia Portable Snow and Ice Shoe Grips Cleats can easily be folded up and carried in a pack or purse for traction on the go.Available in four sizes: Small (fits shoe sizes W5-8, M4-7), Medium (fits shoe sizes W8.5-12, M7.5-10), Large (fits shoe sizes M10.5-15), and X-Large (fits shoe sizes M13.5-16). Sold as a pair.