How to balance propeller 50inch or more

ArduCopter
,
1

Hello

So was just wondering how to balance my 50inch prop that used in my drone with x11plus hobbywing motor ??

Also the props are foldable.

Any prop balancer for this size is available in market ? Or may diy that I can do

Thanks

2

Some kind of mandrel to support the prop and then place it on a leveled set of knife edges.