Secondary or back up O ring for Inon flash battery cap. This O ring is placed in the base of the battery cap and provides a second seal when the cap is installed.
A pack of 4 red silicone O rings (use same grease as the original Inon O ring) for £4 posted in the UK.
Payment by PayPal as a gift (i.e. no fees to me).
Please mail me at : email@example.com if interested.