Pair Over Shoe Studded Anti-slip Ice and Snow Shoe Boot Traction Cleats Crampon easy on/off to fit boots, sneakers, casual and dress shoes Ground-gripping steel studs,10 stainless steel spikes. Stretch-on traction footgear for ice and snow,prevent slipping on snow and ice conditions Size Chart :S - Women(5-7)/Men(3-5); M - Women(7-10)/Men(5-8); L - Women(10-13)/Men(8-11); XL - Women(13-15)/Men(11-13)