What characteristic do no-stem pin curls have?

No-stem pin curls are characterized by being tight and firm due to the lack of a stem in their formation. This particular technique involves wrapping the hair around a pin curl base without leaving any portion of hair not wrapped at the base. As a result, this firmness provides strong hold and structure to the curl, making it ideal for creating defined styles that can maintain their shape.

In comparison, pin curls with stems would typically offer more softness and flexibility, allowing the curl to move more freely. Options that suggest maximum mobility or softer curls are contrary to the foundational qualities of no-stem pin curls. When the curls are created without a stem, they are formed to be tight, which leads to a more structured curl that is different from looser wave formations.