Part of the Safco Active Collection, the Vum Mobile Workstation was designed with flexible working environments in mind. Durable workstation was built to be both functional & adaptable so it's great for on-the-go or to anchor a home office. It is mobile on four casters (two locking) & features a plastic cup holder & dual worksurfaces. The top adjusts in height 12-1/4", & the secondary shelf is stationary. Secondary shelf has a convenient hook for personal items. Safco Active products are designed to promote active movement throughout the day in many workplace settings.