they're not actually chrome.. they are high polished aluminum or something...
i'm sure you can scratch them.. but most people dont step there too often so i doubt it would happen... but at that price its not too expensive to replace one even if you damage it yearly
they look nice and i'm thinking of getting them too!! ..although i'd rather have the euro-spec ones that read Primera across them...
Mythos... where'd you get them? what part of NJ are you from... I live up north near NYC.. I got my G at Ray Catena