The SOS Aluminum Portfolio Series combines a sleek, sophisticated look and high quality at an affordable price. Made of anodized aluminum shells and aluminum profile structures, these handsome portfolio cases have the option to open flat for easy loading or upright for presentations. The nicely finished interiors feature an acid-free, soft-touch cushioned black surface to protect the contents. Elastic straps on both sides securely hold items in place. Each case is lockable for security. The Small Case measures 12" x 18" and accommodates items up to 11" x 17".