Joint Protector's diameter?

[Adonisy]

Hello , I make a Joint Protector today,
but I do not know what's standard size ...

because this protector is not made for only one shaft or butt

I hope everyone use my protector can fit their own shaft and butt...

how can you do? thanks...

now , my protector's diameter is 21.30 mm

 

[cueman]

Hello , I make a Joint Protector today,
but I do not know what's standard size ...

because this protector is not made for only one shaft or butt

I hope everyone use my protector can fit their own shaft and butt...

how can you do? thanks...

now , my protector's diameter is 21.30 mm

If you don't want to make each set custom fit each cue then you might want to make them all 22mm.