I'm not a nail expert and also do not like to file my nails, but because I need it (otherwise you will indeed hang everywhere), let alone good. My old (stinknormal shaped) metal file had already made almost no effect, so I am on the net something clever and gripped along the reviews on this. Getting used to was the thick margin; I have some time needed to get used to it. At this thick edge there is on both sides a groove that I initially also used because of the nail, so to speak "in the guide is" and I so easily could develop a routine while filing (one accesses this file but slightly different than the stink normal). Meanwhile, I no longer do that. The first files I found the rough side of a little too rough and bumpy, but think this should be so. Surprisingly good, I find that I now need much less time for filing. As I always do not like to make a real asset! However, I am now gone over to file three times, first with the coarse side then with the fine side of the file offered here, most recently with the fine side of a new metal file. I think the result is simply cleaner and finer.