Blum SERVO-DRIVE Uno for Bottom Mount Waste/Recycle Set – Blum’s new TANDEM and TANDEMBOX waste/recycle sets are a top-of-the-line choice for kitchen waste/recycle cabinets designed with BLUMOTION soft closing and TANDEM smooth-operating action. Their SERVO-DRIVE touch-to-open technology allows for drawers to be opened with a simple tap of the drawer fronts or a light tug of the handle.