Sq. nails are straighter on the perimeters with a blunt top edge. With sq. nails, you run the potential risk of your fingers wanting shorter and stubby because it gives "the illusion of a wider nail mattress," says Chelsea King, "but if you have slim nail beds and prolonged fingers, https://checkbookmarks.com/story2915250/the-smart-trick-of-shape-of-nail-is-good-for-wider-nail-beds-that-nobody-is-discussing