The device fits onto the underside of the drawer and securely locks onto the Blum MOVENTO drawer runners. Simply slide the drawer onto the MOVENTO runners until the device clicks in place. The MOVENTO locking device makes drawer insertion and removal child’s play. It saves precious assembly time and the quick release mechanism allows easy drawer removal for cleaning. The locking device includes drawer side-to-side adjustment ±1.5mm. Two are required per drawer: one left hand and one right hand. The minimum internal drawer width is 170mm.