Height Adjustable Tabletop - Adjust from 20" - 31.75" H - as well as any height in-between with a secure twist-lock knob for an ergonomic and personalized workspace. Tempered Glass Top – The solid glass desktop (24" x 15.75") is designed to fit almost any sized laptop or tablet. Mobile Rolling Desk - Enjoy smooth-gliding mobility with four 1.5-inch caster swivel wheels (with two locking). Simply screw wheels in for a portable workspace that stays put where you need it. Solid and Stable Design - Durable steel frame finished in white for long-term durability and easy-care. It's perfect for professional environments like offices, art and music studios, libraries, and in dentist's, optometrist's and doctor's offices Easy Assembly – All the tools required for assembly are included in the package. This product is perfect for classrooms as a full-size, height-adjustable podium. The adjustable mobile laptop computer desk can also be used as an alternative to standard office desks.