Features: Multifunction carbon fiber propeller balancer for multicopter fixed-wing. Type: Propeller Balancer Compatible Device: Multicopter fixed-wing 250-700 airplane. Suitable for diameter 2-5mm fixed-wing. Maglev-method was adopted on the center fixing to balance the tested products with zero resistance. Application of electric straight 250-700, fixed wing, multi series, with carbon fiber and Aluminum Alloy CNC processing, applicable to all the main rotor mounting holes for all the main rotor diameter of 2-5MM, the whole 2MM carbon fiber metal frame structure, support the franc bearing design, standard level observer, facilitate the adjustment of the main rotor balance. At the same time, the magnetic levitation equalizer is added, which can be more accurate to detect the dynamic and static balance of the main rotor. Color:As Shown Material:Aluminum Alloy + Carbon Plate Package Contents: 1set * Helicopter blade balancer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.