This 1/4 INDUSTRIAL (I/M Style) female quick coupler has a compact & ergonomic design. With its manual connection, the quick coupler has a simple usage. To connect or disconnect the plug from the coupler, all you need to do is activate the socket manually. Its connection is efficient & secure with the internal four-ball locking mechanism. The sleeve guard helps prevent accidental disconnections of the coupler. The fitting is made of brass, giving it better quality & high resistance to corrosion.