These swizzle stick sanders are only 1/8 wide. They are small enough for smaller spaces and finer details when nothing else will fit. Work great for sanding sprue attach point material left after cutting parts loose with a sprue cutter. Also great for minor flash on delicate parts. There are 2 grits on each one although they aren't marked as to what grit it is. Comparable to 320 & 400. Last a long time and can be trimmed if needed.