This Mobile Lectern is Adjustable in Height. The Plastic Knob on the Adjusting Mechanism Allows for Height Adjustments.The Worksurface is a Light Oak Laminate with a Black Steel Frame. Complete with 2 Inch Casters Two with Locking Brake. The Overall Dimension of the LX9128 are 23Wx19Dx36-45HLUXLX9128. LX9128. Luxor Luxor Mobile Lectern-LX9128.