Made of corrosion-resistant black plastic. Spring-loaded over center action. Push to close, pull to open. Available in three pull-up forces for different applications. Catch size: 1-1/8″ W x 1-7/8″ H; keeper size: 1/2″ W x 2-7/8″ H. C31805 and C31810 are equipped with an electric micro-switch designed to operate an indicator light or form part of a non-safety related logic circuit. Not designed for use as a safety interlock. Catch size: 1-1/2″ W x1-7/8″ H; keeper size: 1/2″ W x 2-7/8″ H.