Sit to Stand - This adjustable workstation allows you to find that needed healthy balance between sitting and standing throughout the long work day for increased alertness and productivity. The sturdy frame supports up to 22 lbs. --Patented-- | Quick Transition - Experience smooth height adjustment in one easy motion using the innovative simple touch height locking mechanism allowing the riser to elevate straight upwards without shifting or wobbling (Adjustment range: 1.8" to 16.5"). | Space Efficient - The 29.3" x 17.8" surface easily fits in a variety of desk layouts while still providing ample room for different monitor and laptop setups. The area is large enough to use with a full-sized keyboard. The sleek, black color and smaller size of this riser enable it to blend well in nearly any environment and maintain a low profile. | Zero Assembly - This riser comes completely preassembled and ready to use right out of the box, so you can get your new ergonomic workstation set up in no time! | We've Got You Covered - Sturdy steel design is backed with a 3 Year Manufacturer Warranty and friendly tech support to help with any questions or concerns.