Features:Built for the modeler who expects the very best.Manufactured out of hardened material.Balances air props of all sizes and weights, boat props, spinners, car wheels, heli rotor heads, jet fans, fly wheels, etc.Securely centers and locks props on to the balancing shaft for utmost accuracy.Each balancer comes complete with easy-to-follow assembly and prop balancing instructions.Completely adjustable propeller balancer.Precision-machined rotating wheels to assure perfect balance easily.Unique over/under set-up option accomodates even large-scale props.Description:Item name: Prop BalancerSuitable for: RC Multi-Rotors, RC Quadcopter, RC Hexcopter, DJI Phantom, DJI Inspire, DJI F450, RC Airplane, RC HelicopterMaterial: plastic and metalPackage Information:Package size: 16 * 9.5 * 4cm / 6.3 * 3.7 * 1.6inPackage weight: 334g / 11.8ozPackage List:1 * RC Prop Balancer (unassembled)1 * User Mannal