WINTER WALKING LOW-PRO ICE CLEAT These are slip-resistant attachments for shoes. I bought these to prevent slipping and falling in New York, but I didn't use them because it didn't snow. New price: $41 Size: US 9-11 Approximately 23cm - 27cm Depending on the shape of the shoe, they may or may not fit regardless of the size. Reference URL: Amazon US https://a.co/d/02KamRTo