Commercial Style multi-tier sit-stand workstation with side return - very good condition. Manual height-adjustable work surface with multiple levels & attached side return. Sturdy, clean, and fully functional. Great for a home office, business office, workshop, drafting or dual-monitor setup. Local pickup only. You adjust by simply pushing lever under the keyboard table (photo shows the black lever) desk portion to the height you want whether you want to stand or sit. Super easy to adjust. As you can see, I have a monitor on the top & then laptop, keyboard on lower portion & then below, I have other office equipment on it. Dimensions: Top back desk portion: 6 feet long corner to corner & width is 24 inches. Front adjustable desk portion is 21 inches in depth & 46 inches wide. Side table is 14 inches wide by 24 inches long. Bottom portion dimensions mirror the top back desk ones. Fabulous desk that can hold so much. Multi-purpose desk. I've used for home office for years & it's been great to be able to stand when I want & sit when I want. Very flexible use wise.