Description Tool Supplies Assembled classMaterial Composite MaterialFour wheel Drive Attributes AssemblageApplicable 250 450 480 500550 600 700 800 helicopter with blades of all series Airplane Power Level Quadcopters all series Features Almighty propeller balancer with the level of the viewer magnetic levitation general fixed wing aircraft propeller straight 250 800 Full use of carbon fiber and aluminum CNC machining applicable to all of the main rotor diameter mounting holes for 2 5MM All the main rotor the overall carbon fiber 2MM metal frame structure the anchor using franc bearing design standard Level viewer easy to adjust the main rotorbalance While additionally equipped with a magnetic levitation balancer can be more precise detection of the main rotor static and dynamic balance Package Includes 1x Metal connector rotor level1x M4 70MM metal strut 2x M4 8MM francs bearing2x M2 carbon fiber sheet support frame1x M 8 level viewer 2x M6 aluminum column support bracket 4x M3 8MM cup Head Cap Screw2x M5 25MM hex head screw cup 2x M4 20MM hex head screw cup 2x M3 16MM hex head screw cup 2x M2 8MM cup Head Cap Screw 1x Maglev balancer