ATG A-1 Maglev magnetic Essential Prop Propeller Balancer for Quadcopter FPV 

Product Feature:
100 percent Brand new and high quality
ATG Propeller Balancer Essential for Quadcopter FPV 
Made from high-strength materials
Maglev-method was adopted on the center fixing axis to balance the tested products with zero resistance 
 Dimension: 10*5.5*1.5cm
note:Suit for 2-blade propeller less than 300g

 Package included:
 1 x ATG Propeller Balancer