The Atlantic Adjustable Desk raises from a seated height of 28" to a standing position of 48" high via a manual, retractable crank handle. The smooth adjustment allows the top to be raised or lowered from highest to lowest and back down in just 30 seconds. This modern desk features an 8mm thick black tinted tempered glass top supported by a heavy duty powder coated 2-stage steel frame. A large pull-out keyboard tray includes side storage and a table top cord management port. Max Weight Limit: 200 lbs. This ergonomic modern glass top desk is perfect for a home office, or at the workplace.