Vintage Rubbermaid Spacemaker Slide-out Under Cabinet Drawer 2350 MCM

Never been used. Comes with all the hardware needed as well as step by step instructions to install it. Comes in original box. Flap of box is missing which can be seen in photos. New old stock from 1974. Measures 15” wide x 12 1/4 deep x 4” high. Made in USA