Provides stability on snow with adjustable straps and sharp crampons. Thank you for viewing. My wife and I bought these new this season and used them twice, at Zao and Goshikinuma. There are no problems with use, but there are scratches on the frame and peeling on the claws, which are inevitable with normal use. I have included photos. Rentals cost a fair amount, and it's inconvenient not being able to move freely, so it's more convenient to have your own. I think it's a great deal as it's a set of two. There is no carry bag. There is an instruction manual. I will be away on business from next week, the 16th to the 19th, and will not be able to ship. Thank you.