These easy to use hanging file frames require minimal assembly. Perfect for any home or office. Fits well on desktop or in most storage box or desk cabinets. Rails are 27 Inches to 24 Inches deep. Features breakaway notches every 1/2 Inches for adjustment. The rails are 27 Inches but it breaks down every half inch to 24 inches. Features heavy duty coated steel construction. Can be adjusted from letter size to legal size with the plastic add-on adapter.