What PIKA said.
Those are ice climbing crampons for experts with the correct boots and maybe Kevlar on the bottom of their climbing bibs. Without an ice axe, these crampons could be the death of you as they are always used as a part of a system. These crampons must be attached to very rigid boots, unlike hiking boots. There would be no way for you to even use them without crampon boots.

But to reiterate PIKAS most important point - you can easily tear up your leg or ankle by getting a front point jabbed into it. Go for instep crampons which simply give you some extra traction and 4 teeth attached under the middle of your boot.

Jim