Abstract: The invention includes a securing structure comprising a first ring member, second and third ring members adjacent to the first ring member, a locking member, and a cord insertable through the second and third ring members, respectively, and engagable by the locking member. The invention also includes a free standing panel member comprising a panel; a plurality of ring members in the panel arranged in groups of at least three ring members adjacent one another; a plurality of support members; a plurality of anchoring members for accommodating the support members; and a plurality of cords each engagable by a locking member (e.g., a spring-actuated cord lock).