WORK SITTING or STANDING VARIDESK® sits on top of your existing desk and lets you switch easily between sitting and standing whenever you like. It ships fully assembled and sets up in minutes with no tools required. Models start at just $175. Order online or call 800-979-9713. US Patent #8671853 | US & Foreign Patents Pending. ©2015 VARIDESK®. All Rights Reserved.http://www.varidesk.com