Smooth gas spring technology, switch from sitting to standing in seconds by just light squeeze of the side handle, stop at any desired height level. Comes pre-assembled, the desk comes pre-assembled, you will only need to connect the keyboard tray with 4 screws (provided in the box). Place it on your desk or table and you are all set.Keep it folded if you like to work sitting down, lightly squeeze the side handle and raise it up if you like to work standing up. Minimum height 4, maximum height 20 from your existing desk/table height. (Note; Once raised, it locks at any height pass 10). Two tier design creates more space within the same footprint, Spacious 38 x 24 upper display surface accommodates dual monitor set up and large 37x 12 lower keyboard deck. Stable straight up and down vertical movement with Sturdy construction to lift to 33 lbs. Helps with preventing the health issues caused by sitting down for a long period of time. The item "Large Dual Monitor Adjustable height Sit Stand Desk" is in sale since Saturday, November 27, 2021. This item is in the category "Home & Garden\Furniture\Home Office Desks". The seller is "gooddealsfly" and is located in Rancho Cucamonga, California. This item can be shipped to United States.