Magswitch Magnetic Cabinet Latch M4 12lb Magswitch 10mm Switchable Magnet Cabinet Latch Magswitch Cabinet latches are the only magnetic cabinet latches that can be turned on & off , Easily installed with a Drill Press , Easy on/off Accepts all M4 Metric standard threaded knob of your choice (not included) Especially designed to hold glass panel doors closed and allow them to open without shaking. Includes two reversible striker plates for installation in most any situation. Great for holding moving doors shut such as in a RV boat or trailer. Requires drill press or equivalent to install