StarTech Mobile Standing Desk with Locking One-Touch Lift for Teachers & StudentsEncourage collaboration and interactive classrooms with this StarTech mobile standing desk. These sit stand workstations allow users to create a setup that suits their needs. The adjustable carts can easily go from a sitting position to a standing position with no disruptions. The two front casters can be locked in place to prevent the rolling workstations from moving. Features include: Simple Height Adjustments Moving between sitting and standing