- Two pairs of keyboard tray rails. - One pair comes with the required four supports to mount under a desk. - The second pair only has two supports (it would require two more to be mounted under a desk). - Listed as “for parts” because there are no screws with these and when extended it doesn’t look like each half of the same pair extends to exactly the same length; this may be fixable or work satisfactorily, I can’t be sure. - Lengths are shown in photos, but if you’d like additional photos or details, please let me know. - Sold as seen.
eBay