Heavy-duty Steel Frame, Mdf With Vinyl Finish DIMENSIONS – 23.75" W x 15.75" D x (20.5" to 32" H). HEIGHT ADJUSTABLE TABLETOP – Adjust the desktop height from 20. 5" to 32" high or any height in between with the manual knob. Easily secure your preferred height in place with the twist-lock knob. COMPUTER WORKSTATION – The single-piece tabletop (23.75" x 15.75") is designed with rounded edges and fits most laptops or tablets; fits all the essentials you’d need for a distraction free work session. SOLID & STABLE BASE – Solid steel frame creates a stable and durable seated workspace. Clearance of 3” when rolling base under furniture. MOBILE ROLLING DESK – Features four 1.5” swivel wheels (two locking).