The InstaView Desktop Reference System from Durable is economical functional and an ideal organizational tool for customer service sales and general office use. It is easily expandable by connecting additional systems with each other (connectors included) and features environmentally friendly glare-free polypropylene sleeves with rugged black frames. Also available with frames in assorted colors - two each in red black yellow blue and green (DBL5612-00). Includes desk stand 10 sleeves (20 viewing sides) and 5 snap-on tabs.