Which of the following describes a characteristic of plain tissue forceps?

Plain tissue forceps are designed specifically for handling delicate tissues with care. Their construction typically features smooth jaws that allow for a firm yet gentle grip on tissues without causing trauma or damage. This characteristic makes them ideal for use in surgical scenarios where precision and delicacy are required, such as in procedures involving sensitive structures like the bowel or other soft tissues.

The other options do not accurately describe plain tissue forceps: they do not have interdigitating teeth, which is a feature found in other types of forceps designed for more secure grasping. Additionally, they are not used to grasp heavy tissues, as that would require a more robust design. Their application is not specific to vascular surgery either; while they can be used in such settings, their primary role is broader, encompassing any delicate tissue work.