A group of special characteristics that non-woven fabrics may have depends on the combination of various factors in their production. The range of features is wide. Nonwoven fabrics may look like paper, feel like, or similar woven fabrics. They may have a soft, flexible hand, they may be hard, they may be rigid, they may be wide, they may have little flexibility. They may be as thin as paper towels, or several times as thick. They can also be translucent or opaque. Their porosity can range from low tear and burst strength to very high tensile strength. They can be made by gluing, heating or sewing. This kind of fabric has good and bad drapability. Some fabrics have excellent washing properties; others don't. Some can be dry cleaned.