This clever device will increase performance if your mortice lock or latch is too weak for unsprung handles. It commonly need to be cut flush into the face of the door. It fits behind the lever handle and helps it to return to its neutral position after operating. To be used with unsprung lever handles. This is the narrower version, and there is a standard version available too. Dimension: Size: 63mm x 25mm Thickness: 6mm
