Using these Hillsound Trail Crampon Pro is easy. First, find the right size as it fits from women's US5 up to men's US12. Then, use the ratchet buckle binding to attach the crampons to your shoes. You can do this quickly and effortlessly. When you're out in the snow or ice, they'll provide great traction for activities like backcountry hiking, glacier travel, or winter hiking. Just be aware that these are for alpine travel in extreme weather, not for technical ice climbing. After using them, take them off with the ratchet buckle system. To maintain them, clean them after each use to remove any snow or dirt. Store them in a dry place. And remember, they come with a 1 - year guarantee, so if there are any issues, you're covered.