Hems are the little pieces of fabric that go around the bottom of a skirt or dress. They can be made from different materials, but the most common material is cotton. Hems are used to finish off a garment at the bottom and to add a decorative touch. They can be sewn onto the skirt or dress, or they can be attached with a special hemming tool. There are many types of hemming tools, including hand-held ones, which are very simple to use, and machine-driven ones, which are more complex to use. This post will show you how to hem a dress using a sewing machine.