Concealed drawer slide with mounting under the drawer bottom for all-wood drawers with soft closing function. The drawer is equipped with a synchronisation mechanism for smooth operation of the individual slide segments. The total load capacity including the weight of the drawer is 40 kg, at this load, the drawer has very good durability for many years. The length of the extension is the same as the length of the drawer (it is a full extension). The slides are connected to the drawer with brackets that allow the drawer front to be adjusted vertically (up and down), horizontally (left and right) and also gap between the front and cabinet can be adjusted. Thickness of side panels of drawer can be up to 19mm.