Gasket size/diameter for Holeshot 3 Hand (Small)

[TravisCook]

The battery in my Holeshot 3 Hand (Small) has finally gave out;
Upon opening up the back case, the rubber is pretty much non-existent. I can't seem to find any info as far as gasket size for the Holeshot Small 3 hand.
It's my daily wear and it pains me not to be able to even wear it.
I checked the manual online for the 3 Hand Small but I didn't see any info as to what size the gasket is for replacement.
I don't have the tool to measure the diameter.

Any guidance will be greatly appreciated. Thank y'all. ~ TC

 

[TravisCook]

Aybody?

 

[TomStrong]

I’m needing this also. Just purchased one and need to know the gasket size and hopefully where to purchase.