I have purchased 2 sets of these with strap-on bindings.
The Couloir are steel 12pts with adjustable length and front width.
The front adjustment requires an 8mm wrench.
The nylon webbing bindings are easy to use, the crampons go on and off quickly and are very secure on semi flexible leather boots.
They come with a crampon pouch that if purchased separately would cost about $20.

Functionally they work fine and are obtainable at a great price.

Customer Service

None, Prompt delivery when purchased.

Similar Products Used:

Camp Green Ice (Inox) Step in crampons This was a 5* value at $50 Crampon pouch purchased separatley.
Camp Ice trek with straps (slow on and off)
SMC with straps (slow on and off).
Grivel G10