Concealed drawer slide with mounting under the drawer bottom for all-wood drawers with soft closing function. The total load capacity including the weight of the drawer is 25 kg, at this load the drawer has a guaranteed lifetime of 50 thousand cycles. The length of the extension is 3/4 of length of the drawer (it is a single extension). The slides are connected to the drawer with brackets that allow the drawer front to be adjusted only vertically (up and down). Thickness of side panels of drawer can be up to 18mm.