Help needed identifying this mask strap

[ManicJacket]

Hey,

A little introduction: My name's Jack, I'm not much of a diver, props are more my thing. I'm currently
doing a little project for myself as I've got some spare time and needed help identifying what seems to be a black scuba mask strap.
I've tried Google, but haven't had much luck. It might not even be a strap for a scuba mask, but it has the mask raised bumps as
most masks.

I've attached an image with 2 screen grabs of the strap and an illustration of the strap.
It seems to be black rubber (Maybe silicone) with raised rectangular bumps and a textured underside, with the wider area having
4 large holes.

Any help anyone can give would be greatly appreciated.

Thank you for your time.

Jack

 

[agilis]

I don't know what sort of mask this may have belonged to, but you seem to have stumbled upon a fascinating and diverting pastime.