Silent full-extension runner with rack synchronization and wide running track, designed for tall cabinets with shelf character. Features opening and closing damping, a column for flexible installation height, and a top guide connection to the shelf base. Includes 3D adjustment of the front and ClickFixx quick-assembly technology. The column profile has a mounting groove for infinitely height-adjustable shelves, maximizing space utilization while ensuring high clarity and transparency. The Convoy Centro column is silver and includes a front stabilizer (set of 2) for tool-free locking onto the full-extension runner.