I have two workstations, but now only need one. This one has been rarely used. RIF6 Adjustable Height Standing Desk Converter - 32 Inch Wide Laptop Riser or Dual Monitor Workstation is ideal for quickly moving from sitting to standing while working. Extra wide so you can have dual monitors, or a desktop and laptop side by side. In excellent (really like new) condition.
This model is no longer available, but several sellers are selling new ones on EBay for $100-$150 dollars.(https://www.ebay.com/itm/167525215811).
From the manufacturer:
EASILY SWITCH BETWEEN SITTING OR STANDING - Our smart "X-Frame" design allows you to quickly and smoothly adjust from 4.3 to 19.9 inches of lift with our premium-grade pneumatic gas lift.
32 INCH WIDTH - The desktop work surface the RIF6 standing desk measures 31.5 x 15.7 inches and holds up to 33 pounds. This is large enough to accommodate two moderately sized monitors or a monitor and a laptop.
LARGE ERGONOMIC KEYBOARD TRAY - Our wide surface, beveled edge keyboard tray allows you to find a comfortable fit to keep your shoulders, neck, wrists and forearms relaxed. Measuring 31.3 x 11.8 inches and supporting up to 4.4 pounds, you'll have plenty of room for a full-size keyboard and mouse or trackpad.
FULLY FEATURED DESK SOLUTION - Choosing a standing desk shouldn't mean sacrificing a clean and elegant work area. Our standing desk includes a cable hole and adhesive clips for cable management. Additionally the high-grade melamine surfaces resist dents, scratches and staining and blend. Our steel base with surface protectors ensure a skid-free experience that won't damage your existing desk.
SPACE EFFICIENT COMPUTER WORKSTATION - Because our standing desk moves up and down vertically within its own footprint, you don't have to sacrifice valuable desk space. When flat the desk measures 31.5 x 24.2 x 4.3 inches and when fully extended 31.5 x 24.2 x 19.9 inches. This range in lift adjustment allows this desk to accommodate users of most heights.