How to Mark your Table Tennis Balls 🏓

Quick tip on how to mark table tennis balls; Why do we do it? How should we do it? Is it legal? What are Pros vs Cons?
…How do you mark your table tennis balls? Thoughts/Opinions? Let me know in comment below.

[@cubekz87]

Cool

[@woshiairy]

It is not yellow, it is neon...

[@dfy]

Let’s meet in the middle @ neon yellow 😈