Ran is an anti slip device that is an excellent solution for the trekker and the trail runner on snow, icy trails, wet grass or simply hiking on steep, muddy terrain. It can be helpful for hunters and mountain photographers, and also for professionals who operate on snow covered or icy terrain: e.g. park rangers and woodsmen operators at ski resorts. The Ran has the ability to adapt itself to different types of shoes, from trail running to trekking, and has a silicone band that requires no adjustment with screws, screwdrivers, or other tools. The steel spikes that have anti-corrosion treatment and the Velcro band ensures stability on the foot once fitted. Comes complete with a useful storage bag. Warning: Ran is an anti slippery device and is NOT a crampon for alpinism. It is not considered Personal Protective Equipment.