The spring-loaded bumper means that you can easily increase and decrease your desk from a standing height into the height of your desk, table, or System on which you select to place the converter. And when you decide to pack it up, it folds completely flat. Great for sitting down https://home-office-standing-desk83714.bloggip.com/37336627/helping-the-others-realize-the-advantages-of-cheap-standing-desk