This listing is for one 15 amp circuit breaker, used working condition.

The circuit breaker has been inspected and ON/OFF operation  tested.

The wire set screw is included. 

This breaker provides a 15 amp circuit protection in the space of one 3/4" breaker. 

This is the older original style Zinsco breaker that can be modified to become a feed thru type.

The buss clip can be moved to ether bus.

Comes with one screw and a buss clip installed.  

You could add a wire set screw to the other end of the breaker for use in the old Zinsco panels without buss bars.