I purchased these for use in my Christmas Village. They fit my HO model train correctly. They are wide enough to stay where I place them. (wider than the original 'tracks' that came with the train)...Would buy again.
True, these are not like the ones I had when I was a kid but these slide together easy. They're a hard plastic base, metal rails. Only one word of caution; If you don't pay attention you can slip them together while still having the metal tracks misaligned. Not that it's hard to put them together but it's easy to overlook because they will still go together.