I just can't see that cutting into any ice under the snow at all. I can't imagine it would last long on concrete either. Seems like one good scraping is all it would handle. I may be wrong (it has happened once or twice in my lifetime :biggrin2) Just seems wrong. I guess if you have a perfect concrete drive and want to save it from scrathes it would be good
Would like to hear from someone that has used them though.