This mobile standing desk with 2 individual platforms is specifically designed for a healthier working life. Thanks to the rotating knob,you can adjust the height of the upper desktop (28.5''-49.5'') and lower desktop (28.5''-46'') separately to reduce muscle tension and improve your efficiency. The spacious desktop with rich storage capacity offers additional room for office supplies. What's more,the front desktop with titling design keeps your laptop at eye level for remarkable comfort. The baffle prevents items from accidentally slipping off. The 360° swivel casters (2 are lockable) ensure extra mobility and safe placement. Made of high grade MDF and steel,this sit-to-stand desk can be used for a long time without breaking.