ALPIDEX Anti slip shoe spikes with 10 spikes snow and ice grips in various sizes | Alpidex.com
Snow Shoe Boot Grips Ice Grippers Crampons Spikes Studs Fits Sizes3 - 6 for sale online | eBay
Ice Snow Grips, Snow Grippers Ice Grippers Non Slip Ice & Snow Grips for Boots And Shoes, Winter Anti Slip Crampons with 20 Replace Studs, Fit for Hiking, Climbing, Walking : Amazon.co.uk: