Just bought this, and no I'm not related to the seller, but have to say it is very good quality and one device covers all my balancing requirements.........except I only use DJI blades and not one was out ! better safe than sorry, but the blades on the other kit have......bad! I did buy a seperate shaft for the L1 props on top of this though.
Helicopter Plane Blade Balancer Prop Rotor Blade Balance
Helicopter Plane Blade Balancer Prop Rotor Blade Balance