2 Brand New ignition coils to fit:
Kawasaki (K) Z 500 (1979-1980) B1-B2.
The Ignition coil pack set has been specifically designed to replace the original coils Kawasaki Z500 or KZ500 and it's sometimes known. It is a 12V CDI, has 100mm mounting points and 2 spade connectors.
These coils are the standard 2 to 2.5 ohms primary coils if you're looking for a like for like replacement of the original coils.
The coil packs replaces both 21121-1010 or 21121-1011.