Features: 1It is made of hardened material and balances various sizes and weights of air props, marine props, trimmers, wheels, helicopter rotor heads, jet fans, flywheels, etc. 2Safely center and lock the props on the balancing shaft for maximum accuracy. 3Each balancer is equipped with easy?to?operate accessories?follow assembly and support balancing instructions. 4Full adjustable pitch propeller balancer. 5Precision machining of rotating wheels to ensures perfect balancing is easy. 6Unique upper/lower settings can accommodate options and even large props. 7Dubro separetly offers an optional four& 8209axis balancer shaft two 5mm DUBQ3380 to 6mm DUBQ3381. Condition: 100% brand new Item type: Prop Balancer Material: Plastic Metal Color: black Weight: Approx. 326g Applicable to: RC multi-rotor, RC four-axis helicopter, RC hexagonal helicopter, for DJI Phantom, for DJI Inspire, for DJI F450, RC aircraft, RC helicopter Package Included: 3 x Balancing board5 x Fixed column1 x English instruction26 x Screw accessories&nbsp