Different dimension Workdesk Keyboard Trays, $5 each.
just trays, nothing else parts.
I have actually even more compared to visualized.
See my various other ads also(I have furniture and other items available for sale).
http://toronto.en.Canadianlisted.ca/search/sss?query=m1b+2z5&srchType=A&minAsk=&maxAsk=.