New in box.New 30 Standing Desk Converter Stand up Desk Riser - Sit Stand Desk Adjustable Workstation Height Lift Standing Computer Desk for Home Office 30 InchColor Black. Weight 30 lbs.D146-30Create Instant Active Standing - The desk riser provides on-demand standing throughout the day for the freedom to get out of your chair and relieve muscle tension, reduce stress, and increase productivity.Very Minimal Assembly - The sit-stand desk converter is almost ready to go right out of the box Place it on your existing desk, attach the keyboard feet and start organizing your workstation.Spacious 30 Surface - The 30.2 x 17.8 desktop provides room for single and dual monitorlaptop setups. The 30 x 12.4 keyboard tray raises in sync with the top surface to create a comfortable workstation.Strong 33 lbs Lift Assist - Go from sitting to standing in one smooth motion using the innovative, simple touch height locking mechanism Adjustment Range 4.9 to 16.9.