The spring-loaded bumper permits you to easily raise and decrease your desk from a standing height on the height of the desk, table, or System on which you decide on to place the converter. And when you decide to pack it up, it folds absolutely flat. Why reviewers love it: https://judahzegfb.tokka-blog.com/38462391/the-smart-trick-of-standing-desk-corner-that-nobody-is-discussing