In the US most of the wood pencils you’ll find are either round or hexagonal (at least in places I’ve seen) with emphasis on the hexagons. I personally prefer round for comfort, but they tend to roll off of any but the flattest of surfaces. Apparently people in other places have found this an issue as well, and attempted to rectify it, because I recently received a set of writing utensils from Peru, in which were 4 triangular writing instruments, among them the Paper:Mate Mongol Tri. Is it an upgrade?
At first glance there’s nothing interesting about their design. They’re regular pencil length: ≈ 8”, with a crimped ferrule holding a pink eraser, and yellow paint with black (stamped) lettering. The printed information is all you need to know and a barcode, there is even a stamped but not colored “woodclinched” which I’m sure means something. It’s an overall similar diameter to standard pencils here in the US, but maybe a millimeter or so thicker. That extra thickness is to accommodate the rounded triangular shape (it’s probably the same volume of wood overall) that doesn’t roll off the desk (for the most part; you might have a very steep desk) and fits quite comfortably into the hand when using a standard 3-finger pencil grip. My fingers are much closer together when using this rather than a hexagonal design, but there isn’t much of the hand cramping you get when using smaller diameter writing instruments, and the paint provides enough friction to hold onto.
Performance is nothing special and what you’d expect from a #2 Paper:Mate. The lead hardness is middle of the road, more on the softer side of HB, but that really just contributes to it losing its point quickly and not much in how it looks on paper. The eraser is fine, with nothing special about it. Like most integrated wood pencil erasers, it isn’t really enough for the life of the pencil, but it won’t be vanishing on you. In the package they come with a point that was pretty dull when I got it (but it did fly and go through the US Post Office first) and was obviously made with a chisel sharpener (three pretty flat cuts, one on each side) but it does work just fine with a standard rotating sharpener, even if it’s a bit strange to hold.
If you really don’t like the feel of your average round-ish pencil, this (or similar) might be worth seeking out. I certainly don’t mind using it, and can see how it would be more comfortable under certain circumstances. But it is a fairly standard test/school/general-use pencil, with nothing special about how it writes. I‘ll definitely be keeping one around, and I hope to see products like this in the US in the future, but I’m pretty comfortable with round writing implements and don’t see the need to swap.