Thank you for your replies. Accordingly, I don't think it is anything critical to the vehicle.
And sorry I haven't been posting incessantly since joining. Clearly, I'm essentially a "reader" rather than a "poster".
Mike
I found this under the 2016 Wrangler today after washing it. I think but am not sure it was in the rear area. I believe it in fact it came from the Jeep, one of you will know what it is.
Thanks sincerely,
Mike