Today's classrooms are collaborative environments. That is why NPS® created the Sit-Stand Student's Desk. The attractive gray desktop with black edge banding, provides ample work space for all your needs. Two-inch square support columns along with a comfortable foot stand make for rugged durability. Want to change positions during class? It's easy and quiet to adjust from 27.75 to 44.5 through the use of a simple pneumatic lift system. Having the option to choose to sit, stand and anything in between provides for optimal blood flow and increased positive posture making your day comfortable and productive. Take this desk with you anywhere you need to be in the classroom as it easily moves with four, 2.5 two-tone double wheel hooded casters.Note: This is a non-returnable item.