Snooker help

[147Jim]

Yeah I saw it, Steve Davis found out he naturally puts a touch of side on without knowing and he won 6 world titles, there's hope for us all.

[Delphi]

This video?
https://www.youtube.com/watch?v=yTub6nzK488

[Thats andy]

They are called “The Balls”

[Mark187187]

They're made by Chris Henry. Can't remember what they're called.

[baghead666]

I caught the end of Steve Davis doing a learning session on TV the other day where they were using light balls to show what side your putting on the white.
did anybody else see it or have a link to it I think it was during the Irish open but maybe mistaken any help would be great