The Yaktrax Pro Ice Steel Coils are traction devices designed for winter sports enthusiasts, such as runners, hikers, and walkers. These sturdy black cleats come in size M, suitable for US shoe sizes; Men's 9-11, Women's 10.5-12.5, Euro Men's and Women's 43-45. Manufactured in China, these Yaktrax products provide extra traction on snow and ice to prevent slipping and improve stability while engaging in outdoor activities in colder weather conditions.