Any idea what this is

[Good old blightly]

Hi all, Any idea what this is, sorting out a box of 68-70 Charger bits and came across this rubber mat,
has RH1 5.5 H01 Stamped on it??
It looks purpose made? Measures 7"x 7"

Cheers..

 

[Richard Cranium]

That's nothing that would have come from the factory.

 

[Good old blightly]

Thanks,
l couldn’t place it.
Must be someone put it there to get me head scratching (lol)

 

[WileERobby]

It's a coaster for my giant beer mug.

 

[Good old blightly]

Good idea, that’s what it will be used for now

 

[Mike67]

Kinda looks like a battery tray mat...

 

[Good old blightly]

My original idea, but for bikes at 7x7 seems a bit to big